178 Questions
What is the basic cause for weathering variations and resultant biodiversity?
Input of solar energy and water
How many species are estimated to exist globally?
10 million
What factor has led to the rapid decline in biodiversity since the emergence of humans?
Overuse
Why are tropical forests considered very rich in biodiversity?
Richness of species and ecological niches
What is the estimated percentage of fresh water fishes from South America that are yet to be classified?
40%
How many years of evolution have led to the biodiversity we have today?
2.5-3.5 billion years
Why are national parks and sanctuaries established?
For conservation
Which regions are known to have richer biodiversity?
Tropical Regions
What are threatened species?
Species suffering from the danger of extinction
Where was the 'Earth Summit' held?
Brazil
What is the importance of biodiversity to human kind?
Provides ecosystem services and resources
'Hotspots' refer to areas that are characterized by:
'Unique' species threatened by introduced species and land development
What does biodiversity refer to?
The number and variety of organisms within a specific geographic region
Which level of biodiversity refers to the variation in genes within species?
Genetic diversity
Why is genetic diversity important for the healthy breeding of species?
It helps in maintaining a healthy breeding population
What is the term used to describe areas rich in species diversity?
Hotspots of diversity
How can a loss of species impact the ability of an ecosystem to maintain itself?
It decreases the ability of the system to maintain itself
Which term describes the variety of habitats and ecological processes within an ecosystem type?
Ecosystem diversity
In what geographic regions is biodiversity usually richer?
Tropical regions
'Crop diversity' falls under which category of biodiversity?
'Agro-diversity'
'Bio' in biodiversity refers to:
'Life'
What does ecosystem diversity refer to?
Differences in habitats and ecological processes within each ecosystem type
How does genetic biodiversity help in a healthy breeding population?
It ensures greater adaptability to changing environments
What does species capture and store energy, produce, decompose, etc., according to the text?
Functions important for ecosystem function and human survival
What are some of the important economic commodities supplied by biodiversity, as mentioned in the text?
Food crops and livestock
What is the scientific role of biodiversity highlighted in the text?
It helps in understanding how life evolved and continues to evolve
Why is biodiversity considered important for understanding life functions?
It provides insight into the role of each species
What is the ecological role of biodiversity mentioned in the text?
Species perform functions in an ecosystem
Why is it considered morally wrong to cause the extinction of any species voluntarily?
Each species has an intrinsic right to exist
What has accelerated the loss of species and habitats in different parts of the world?
Growth in human population
Which regions contain about three-fourth of the world human population as mentioned in the text?
Tropical regions
What has proven disastrous for the entire biosphere according to the text?
Overexploitation of resources
What term is used for species that are likely to be in danger of extinction in the near future if threatening factors persist?
Vulnerable species
What does IUCN stand for in the context of endangered species classification?
International Union for Conservation of Nature and Natural Resources
What is published by IUCN regarding endangered species worldwide according to the text?
Red List
What type of species are those which are not the natural inhabitants but introduced into a local habitat?
Exotic species
What is the main purpose of the Wild Life (Protection) Act, 1972 passed by the Government of India?
To establish national parks and sanctuaries
Why are certain countries like Mexico, Brazil, India, and Indonesia called mega diversity centres?
Because they possess a large number of the world's species diversity
How are biodiversity hotspots defined by the International Union for the Conservation of Nature and Natural Resources (IUCN)?
By their vegetation and primary productivity
What percentage of plants and animals in Madagascar are found nowhere else in the world?
85%
How does disturbance in one form of life affect biodiversity according to the text?
It causes an imbalance in other forms of life
What is the critical problem highlighted in the text regarding biodiversity conservation?
Conservation of species
What key event took place in June 1992 at Rio de Janeiro, Brazil related to biodiversity conservation?
Earth Summit
How is the protection of habitats for species defined in the conservation strategy mentioned in the text?
Safeguarding areas where species feed, breed, rest, and nurse their young
What was established under the Wild Life (Protection) Act, 1972 passed by the Government of India?
National Parks and Sanctuaries
Which organization has identified certain areas as biodiversity hotspots?
International Union for Conservation of Nature and Natural Resources (IUCN)
What is the primary basis for the diversity of vegetation and biodiversity, as mentioned in the text?
Solar energy and precipitation
Why has biodiversity begun a rapid decline since the emergence of humans?
Overexploitation and habitat destruction
Which type of forests are specifically mentioned as very rich in biodiversity in the text?
Tropical forests
What has led to the rapid decline of biodiversity since the arrival of humans?
Industrialization and urbanization
How many species are estimated to exist globally, as mentioned in the text?
Around 10 million
What is responsible for the diversity of vegetation that underpins biodiversity according to the text?
Weathering mantle
Why are national parks and sanctuaries established?
To conserve biodiversity
What is the main threat to the unique plants and animals of the islands of Hawaii mentioned in the text?
Introduced species and land development
Where is biodiversity richer according to the text?
Tropical Regions
What is the significance of 'Earth Summit' as mentioned in the text?
Discussing global environmental concerns
What is a major factor contributing to the loss of biodiversity?
Introduction of exotic species
Why are threatened species at risk of extinction?
Suffering from the danger of extinction
Why is it considered ethically wrong to cause the extinction of any species voluntarily, as mentioned in the text?
Because each species has an intrinsic right to exist
What is the main impact of overexploitation of resources and deforestation on biodiversity, as per the text?
Accelerates loss of species and habitats
What types of natural calamities are mentioned in the text to cause damage to the flora and fauna of the Earth?
Earthquakes and volcanic eruptions
Why is the introduction of exotic species considered harmful to natural biotic communities in an ecosystem?
Exotic species disrupt the balance and outcompete native species
What is classified under 'Vulnerable Species' according to the International Union for Conservation of Nature and Natural Resources (IUCN)?
Species that are likely to be endangered in the near future
What does loss of biodiversity indicate about relationships with other living species, as per the text?
Poor relationship with other living species
How does biodiversity contribute to understanding the evolution of life, as mentioned in the text?
By providing clues on how life evolved and continues to evolve
'Tropical regions occupy about one-fourth of the total area but contain three-fourth of the world's human population.' What impact does this human concentration have on biodiversity?
Accelerates loss of species and habitat destruction in tropical regions
What is classified under 'Endangered Species' according to the International Union for Conservation of Nature and Natural Resources (IUCN)?
Species that are likely to be endangered in the near future if current threats persist
Why has biodiversity become a critical indicator according to the text?
To assess the state of relationships with other living species
Why is it important to preserve endangered species according to the text?
To maintain the balance of the ecosystem
What is the main purpose of the Wild Life (Protection) Act, 1972 passed by the Government of India as mentioned in the text?
To protect and conserve wildlife
Why are habitats where species feed, breed, rest, and nurse their young safeguarded and protected according to the text?
To ensure the survival and well-being of species
What does 'mega diversity centres' refer to as mentioned in the text?
Countries with a large number of world's species diversity
Why are areas identified as biodiversity hotspots crucial for conservation efforts?
Due to their vegetation richness
What is the significance of involving local communities and individuals in biodiversity conservation efforts?
It promotes sustainable conservation practices
How does disturbance in one form of life impact other life forms according to the text?
It leads to an imbalance in ecosystems
What event took place at the Earth Summit held in June 1992 at Rio de Janeiro, Brazil related to biodiversity conservation?
'Convention on Biodiversity' was signed by 155 nations
Why is continuity in the conservation process highlighted as a critical problem regarding biodiversity?
Ensures long-term preservation of species and habitats
'Hotspots' are defined according to what characteristic mentioned in the text?
Their vegetation richness
'Habitats where species feed, breed, rest, and nurse their young should be safeguarded and protected' refers to which aspect of biodiversity conservation?
'Species habitat protection'
What is the estimated average half-life of a species?
One to four million years
What does genetic diversity refer to?
Variation of genes within species
What are areas rich in species diversity referred to as?
Hotspots of diversity
Why is genetic diversity important for the healthy breeding of species?
It enhances the chances of adapting to environmental changes
What does ecosystem diversity consider?
Diversity of habitats and ecological processes in different ecosystem types
What is the main reason for classifying some areas as biodiversity hotspots?
Richness, abundance, and types of species
Why is biodiversity considered our living wealth according to the text?
It constitutes a reservoir for resources like food and medicine
How does a high genetic diversity contribute to the survival of species?
By increasing the chances of adapting to environmental change
What is the main basis for the diversity of vegetation and biodiversity?
Solar energy and water input
Why has biodiversity begun a rapid decline since the emergence of humans?
Due to overuse and extinction of species
What factor has contributed significantly to the loss of biodiversity according to the text?
Overexploitation of resources
What is the estimated range of global species numbers mentioned in the text?
2 million to 100 million
What region is highlighted as particularly rich in biodiversity according to the text?
Tropical forests
How long is the evolution period mentioned in the text that has led to today's biodiversity?
2.5-3.5 billion years
What is the main purpose of establishing national parks and sanctuaries?
Conservation
Which regions are known to have richer biodiversity?
Tropical Regions
What does 'threatened species' refer to?
Species suffering from the danger of extinction
Where was the 'Earth Summit' held?
Brazil
What is the term used to describe areas with unique plants and animals threatened by introduced species and land development?
Hotspots
Why are threatened species in danger of extinction?
Lack of suitable habitats
What is the average estimated half-life of a species according to the text?
Between one and four million years
What does biodiversity refer to, as mentioned in the text?
The number and variety of organisms in a specified geographic region
Why is diversity consistently richer in the tropics according to the text?
As one moves towards polar regions, species populations decrease
What is genetic biodiversity primarily related to?
Variation of genes within species
What does the term 'hotspot' primarily refer to regarding biodiversity?
Areas rich in species diversity
How does a high biodiversity contribute to the stability of an ecosystem?
By increasing the chances for species to survive through adversities
What is 'crop diversity' often referred to as within biodiversity discussions?
Genetic diversity
Why is it mentioned that boundaries of ecosystems are not rigidly defined?
Because ecosystems evolve without any reason
What is an essential role that individual organisms play within an ecosystem?
To contribute something useful to other organisms as well
In what way does biological resources contribute to the deterioration of biodiversity?
By being exploited for food, pharmaceutical, and cosmetic products
How do ecosystem boundaries impact the adaptability of an ecosystem?
By making it difficult to define distinct ecosystem boundaries
Why is it important for an ecosystem to have a high genetic diversity?
To enhance chances of adaptation to environmental change
What does the International Union for the Conservation of Nature and Natural Resources (IUCN) identify as biodiversity hotspots?
Habitats with a large number of endemic species
How does the Wild Life (Protection) Act, 1972 in India contribute to biodiversity conservation?
By establishing biosphere reserves and national parks
Why are mega diversity centres significant according to the text?
They possess a large portion of the world's species diversity
What is the main purpose of the Convention on Biodiversity signed at the Earth Summit in 1992?
To encourage nations to adopt sustainable practices for biodiversity conservation
Why are local communities and individuals considered crucial for successful biodiversity conservation efforts?
Their involvement leads to more effective conservation outcomes
What is a critical issue highlighted by the text regarding biodiversity conservation?
The need for continuous conservation efforts beyond species preservation
How does disturbance in one form of life affect biodiversity according to the text?
It causes imbalance and degradation in the environment affecting other life forms
What is the primary basis for the diversity of vegetation that underpins biodiversity according to the text?
Variety and abundance of plant species
What is identified as crucial for successful environment-friendly practices and sustainable development according to the text?
Involvement and cooperation of local communities and individuals
In what way do hotspots rely on species-rich ecosystems according to the text?
Primarily for providing essential resources like food, cropland, and timber
What is one of the main strategies suggested by conservationists to prevent extinction as mentioned in the text?
Making efforts to preserve endangered species
How do areas with mega diversity centres contribute significantly to global biodiversity according to the text?
By possessing a vast array of different plant and animal species
Why is it considered morally wrong to voluntarily cause the extinction of any species?
Because each species has an intrinsic right to exist
What is the impact of rapid human population growth on biodiversity loss?
It accelerates the loss of species and habitats
Why are tropical rain forests considered crucial for biodiversity?
As they contain 50% of the species on Earth
What is the role of overexploitation of resources in biodiversity loss?
It accelerates deforestation
What categorizes a species as 'Endangered' according to the IUCN?
They are likely to be in danger of extinction in the near future
How do pollutants like pesticides impact biodiversity according to the text?
They destroy weak and sensitive species
Why are exotic species harmful when introduced into a local habitat?
They can cause extensive damage to the natural biotic community
What is the primary driver of weathering variations and resultant biodiversity?
Input of solar energy and water
How long is the estimated evolutionary period that has led to the current biodiversity?
2.5-3.5 billion years
What has caused a rapid decline in biodiversity since the emergence of humans?
Overuse and exploitation
Why are tropical forests mentioned as being very rich in biodiversity?
Abundance of species
What is the approximate global range for the number of species mentioned in the text?
2 million to 100 million
How does the weathering mantle impact the diversity of vegetation and biodiversity?
It promotes speciation
What is the main threat to the unique plants and animals of the islands of Hawaii?
Land development
Where was the 'Earth Summit' held?
Brazil
In biodiversity conservation, what does the term 'hotspots' refer to?
Ecologically sensitive zones with high species diversity
Why are national parks and sanctuaries established?
To conserve biodiversity
What is the main focus of the Convention on Biodiversity signed at the Earth Summit in 1992?
Conserving genetic resources
'Exotic species' refer to those that are:
Introduced into a local habitat by human activities
What is the significance of the Wild Life (Protection) Act, 1972 passed by the Government of India?
To establish national parks and sanctuaries for endangered species
Why are certain areas identified as biodiversity hotspots according to the text?
Because they rely on species-rich ecosystems for food and income
Why are mega diversity centres like Mexico, Brazil, and India important in biodiversity conservation?
Because they possess a significant portion of the world's species diversity
What is the main focus of the International Union for the Conservation of Nature and Natural Resources (IUCN) regarding biodiversity?
Concentrating resources on vulnerable areas
Why is there an emphasis on safeguarding habitats where species feed, breed, rest, and nurse their young?
To protect the critical functions that support species survival
What is a key reason for the establishment of biosphere reserves according to the text?
To propagate a variety of species within natural boundaries
Why is it mentioned that development must be harmonious with other life forms?
To ensure human activities are sustainable and not destructive
What is the critical problem highlighted in the text regarding biodiversity conservation efforts?
Continuation of the process of conservation
What is the primary contribution of vegetation to biodiversity hotspots?
Determining the primary productivity of ecosystems
Why is there an urgent need to educate people about adopting environment-friendly practices?
To reorient activities towards sustainable development
What represents the continuing process of conservation highlighted in the text?
Conservation beyond preserving species or habitats
What is the main role of local communities in biodiversity conservation efforts according to the text?
Involvement and cooperation for sustainable conservation practices
Why is it unethical to voluntarily cause the extinction of any species?
Because it disrupts the balance in biodiversity
How do natural calamities impact biodiversity?
By causing damage to the flora and fauna
What do pesticides and pollutants primarily do to weak and sensitive species?
Destroy them
What is the consequence of overexploitation of resources on biodiversity?
Accelerated loss of species and habitats
How can the introduction of exotic species harm a natural biotic community?
By causing extensive damage
Why are tropical rainforests considered disastrous if destroyed?
Due to a decrease in biodiversity
What is the main contribution of human communities to biodiversity?
Shaping the diversity of nature at various levels
How does biodiversity serve as an indicator of relationships with other living species?
It reflects respect for other species' lives
What is the main function of ecosystems according to the text?
To support diverse species interactions and functions
What is the primary role of each species in an ecosystem as mentioned in the text?
To fulfill specific functions within the ecosystem
Why is it essential for humans to consider the intrinsic right of every species to exist?
To maintain ethical responsibility towards all living organisms
How does each species in an ecosystem contribute to sustaining life according to the text?
By playing specific roles in supporting ecosystem functions
What does biodiversity refer to?
The variability in living organisms within a specific geographic area
What is genetic diversity?
The variation of genes within species
Why is biodiversity considered our living wealth?
It contributes to the health of ecosystems and human survival
What is the relationship between ecosystem adaptability and biodiversity according to the text?
Ecosystems with high biodiversity have greater chances of adapting to environmental change
What term is used to describe areas that are rich in species diversity?
'Hotspots' of diversity
How does genetic diversity contribute to healthy breeding of species?
By allowing for adaptability to changing environments
What is the economic role of biodiversity mentioned in the text?
As a reservoir for manufacturing food, pharmaceutical, and cosmetic products
What benefit does a diverse ecosystem provide according to the text?
Increased chances for species survival during adversities
'Boundaries' of communities and ecosystems are not rigidly defined primarily because:
'Boundaries' can be difficult and complex to demarcate
'Hotspots' of biodiversity contain:
'Hotspots' are areas rich in species diversity
What is agro-biodiversity?
The variability of genes within agricultural crops.
Why are areas rich in species diversity called hotspots?
They contain large numbers of different species.
Test your knowledge on the significance of biodiversity by exploring its role in supplying economic commodities, understanding evolution, and sustaining life. Learn about food crops, forests, medicinal resources, and more.
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