B.Com BCH 101 - Environmental Science Quiz

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Questions and Answers

What is a direct consequence of converting grasslands into irrigated farmlands?

Increase in soil salinity (correct)

Higher capacity for wildlife habitat

Improvement in biodiversity

Enhanced grassland regeneration

Which of the following practices negatively affects grassland ecosystems?

Overgrazing by domestic animals (correct)

Planting grass species

Lighting fires during the winter

Controlled grazing

Why is it essential to protect less disturbed grassland patches?

They can easily be converted into industrial areas.

They offer recreational opportunities only.

They retain unique plants and animals. (correct)

They are more productive for agriculture.

What happens to grasslands when they are frequently burned and overgrazed?

They deteriorate and become barren. Signup and view all the answers

Which human activity poses a serious threat to grassland ecosystems?

Conversion to industrial areas Signup and view all the answers

What are the three levels of biological diversity?

Genetic, species, and ecosystem diversity Signup and view all the answers

Which of the following is considered a major threat to biodiversity?

Habitat loss Signup and view all the answers

What is the main focus of in-situ conservation methods?

Protecting species within their natural habitats Signup and view all the answers

Which appropriation relation has been adopted for pollution control under Indian law?

Water (Prevention and Control of Pollution) Act Signup and view all the answers

India is known as a mega-biodiversity nation primarily due to its:

High number of endemic species Signup and view all the answers

Which of the following is a type of environmental pollution?

Soil pollution Signup and view all the answers

What did the Chipko movement primarily focus on?

Forest conservation Signup and view all the answers

What is a characteristic feature of a forest ecosystem?

It consists of layers from the ground to the canopy. Signup and view all the answers

Which of the following ecosystems can be considered a modified ecosystem?

Urban areas Signup and view all the answers

What aspect of ecosystems do biogeochemical cycles and energy transfer mechanisms primarily describe?

How ecosystems function and interact. Signup and view all the answers

Which type of species is often most abundant in an ecosystem?

Insects Signup and view all the answers

What is essential for the maintenance of human life and civilization according to the ecosystem's role?

Natural ecosystems Signup and view all the answers

What defines the composition of an ecosystem's biotic components?

The variety and abundance of plant and animal species. Signup and view all the answers

Which statement best describes a food chain within an ecosystem?

It involves energy transfer from producers to consumers. Signup and view all the answers

What are abiotic components of an ecosystem?

Non-living components like air, water, and soil. Signup and view all the answers

What can be inferred about the interaction between biotic and abiotic components in an ecosystem?

Their interaction is vital for ecosystem functioning. Signup and view all the answers

What distinguishes a forest ecosystem from others?

It has both abiotic and biotic components. Signup and view all the answers

Which factor does NOT influence the type of forest in a region?

Type of animal species Signup and view all the answers

Which of the following correctly identifies a type of forest in India?

Coniferous and Broadleaved forests Signup and view all the answers

What is the main characteristic of coniferous forests?

They contain trees with needle-like leaves. Signup and view all the answers

Which of the following areas is known for its evergreen forests?

The Western Ghats Signup and view all the answers

Which trees are typically found in arid areas?

Thorn trees Signup and view all the answers

The presence of which animal is characteristic of the Himalayan region?

Snow Leopard Signup and view all the answers

Which statement about broadleaved forests is true?

They have large leaves of various shapes. Signup and view all the answers

Which classification does NOT apply to the forests of India?

Sclerophyllous Signup and view all the answers

In which region do mangrove trees primarily grow?

River deltas Signup and view all the answers

What does a food chain illustrate?

The flow of food energy between species Signup and view all the answers

Which of the following describes a food web?

A series of interconnected food chains Signup and view all the answers

In a marine environment, which organism serves as the primary producer?

Phytoplankton Signup and view all the answers

What is the initial stage of ecological succession following a disturbance?

Pioneer stage Signup and view all the answers

Which factor can influence ecological succession?

Seasonal environmental changes Signup and view all the answers

Which of the following best describes a climax stage in succession?

A stable end point of community development Signup and view all the answers

What is the main difference between natural vegetation and planted trees?

Natural vegetation is more diverse Signup and view all the answers

During succession in a pond ecosystem, what happens after the aquatic stage?

It transitions back to a dry terrestrial habitat Signup and view all the answers

What characterizes the seral stages in an ecosystem?

They follow the pioneer stage in succession Signup and view all the answers

What is the consequence of forest clearing on ecological succession?

It initiates an orderly process of community development Signup and view all the answers

Study Notes

B.Com (Honours) BCH 101 - Environmental Science 1st Semester

Course is offered by Arunodaya University, School of Arts, Humanities and Social Science.
Syllabus includes eight units.
Unit 1 covers introduction to environmental studies
Unit 2 covers ecosystems (forest, grassland, desert, aquatic)
Unit 3 is about natural resources (renewable and non-renewable)
Unit 4 covers biodiversity and conservation
Unit 5 deals with environmental pollution
Unit 6 covers environmental policies and practices
Unit 7 covers human communities and the environment
Unit 8 is about fieldwork

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Description

Test your knowledge on Environmental Science concepts covered in the B.Com (Honours) BCH 101 course. This quiz includes topics such as ecosystems, natural resources, biodiversity, environmental pollution, and policies. Challenge yourself with questions from all eight units of the syllabus!