Ecology: Ecosystems, Cycles & Biodiversity

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Questions and Answers

Which of the following biogeochemical cycles is NOT typically gaseous in an ecosystem?

  • Sulfur cycle
  • Phosphorus cycle (correct)
  • Carbon cycle
  • Nitrogen cycle

Which biome is most accurately described as the 'lungs of the planet'?

  • Amazon rain forest (correct)
  • South Africa rain forest
  • Sahyadri rain forest
  • Kankan rain forest

What term describes the conservation of biodiversity outside its natural habitat?

  • Conservation
  • Ex-situ (correct)
  • In-vivo
  • In-situ

In the context of an ecosystem, what does 'standing crop' refer to?

<p>All the living materials, both animals and plants (B)</p> Signup and view all the answers

Which term best describes the variety of living organisms found on Earth, including all natural processes?

<p>Biodiversity (D)</p> Signup and view all the answers

What is the term for the movement of energy from a plant source through a sequence of organisms?

<p>Food chain (B)</p> Signup and view all the answers

Which of the following is NOT a value of biodiversity?

<p>Environmental use (A)</p> Signup and view all the answers

Which factor listed is NOT a significant cause of biodiversity loss?

<p>Eco-friendly (B)</p> Signup and view all the answers

What enables plants to be classified as producers within an ecosystem?

<p>Plants produce their own food (D)</p> Signup and view all the answers

What is the term for the process where green plants and other organisms use sunlight to synthesize nutrients?

<p>Photosynthesis (D)</p> Signup and view all the answers

Excluding the Himalayan range, which of the following is not generally recognized as a biodiversity hotspot in India?

<p>Central Ghat (A)</p> Signup and view all the answers

A trophic level refers to:

<p>An organism's position in an ecosystem (A)</p> Signup and view all the answers

Which type of ecological pyramid is always upright?

<p>Pyramid of energy (D)</p> Signup and view all the answers

Which ecosystem type accounts for the largest share of net primary productivity on Earth?

<p>Ocean (D)</p> Signup and view all the answers

According to the World Health Organization (WHO), at what decibel level (dB) is noise considered pollution?

<p>75 decibels (C)</p> Signup and view all the answers

Which of the following is NOT typically categorized as solid waste?

<p>Wastewater (C)</p> Signup and view all the answers

Which of these options is NOT an example of municipal solid waste?

<p>Agriculture waste (A)</p> Signup and view all the answers

What is the term for harmful materials present in the environment?

<p>Pollutants (C)</p> Signup and view all the answers

Which of the following is NOT a typical type of impurity found in water?

<p>Pollen (C)</p> Signup and view all the answers

What type of sound is classified as Noise?

<p>Undesirable and unwanted sound (C)</p> Signup and view all the answers

Flashcards

What is biodiversity?

The variety of life found on Earth and all of the natural processes.

What is a food chain?

Transfer of energy from the source in plants through a series of organisms.

What is ex-situ conservation?

Conservation of biodiversity outside the natural habitat.

What is photosynthesis?

The process where green plants use sunlight to synthesize nutrients.

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What is a trophic level?

An organism's position in a food chain

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What is a pyramid of energy?

A pyramid that tracks the flow of energy through different organisms

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What are pollutants?

Harmful materials found in the environment

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What is incineration?

Complete destruction of toxic waste.

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What is deep burial?

High level waste management

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What is pH?

A measure of the acidity or alkalinity of a substance.

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What are air pollutants?

Gases and particles hazardous to breathe in

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What the BOD limit?

Sewage should have content level

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What is smog?

Combination of smoke, fog, and pollutants

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What does CPCB stand for?

Central Pollution Control Board

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What is the goal of CPCB?

Aim to prevent the environmental pollution

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What are NGOs?

Organisations that work for a 'cause'

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What is EIA?

A measuring tool to evaluate the effect on the environment

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What does GIS stand for?

Geographical Information Systems

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What is green IT?

Reduce the amount of emissions

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What is solar distillation?

Use solar energy, collect condensate

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Study Notes

Biogeochemical Cycles

  • The phosphorus cycle is not a gaseous biogeochemical cycle in an ecosystem.

Ecosystems

  • In an ecosystem, the standing crop refers to all the living materials, including both animals and plants.

Biodiversity

  • Biodiversity describes the variety of life on Earth and all the natural processes.
  • The Amazon rain forest is known as the "lungs of the planet".
  • Species diversity is the type of diversity including all different kinds of living things in a certain habitat.
  • Conservation of biodiversity outside the natural habitat is called ex-situ conservation.
  • Environmental use is not a value of biodiversity.
  • Eco-friendly practices are not a cause of biodiversity losses.

Plant Producers

  • Plants make their own food, classifying them as producers.
  • Photosynthesis is the process where green plants and some organisms use sunlight to synthesize nutrients.

Hotspots in India

  • The Central Ghats are not an important biodiversity hotspot in India.

Energy Transfer

  • Energy received by organisms during energy transfer is converted into three areas.
  • A trophic level describes an organism's position in a food chain.

Ecological Pyramids

  • The pyramid of energy is always upright.
  • Oceans account for most of the net primary productivity on Earth.

Noise Pollution

  • WHO defines noise above 75 dB as noise pollution.

Waste

  • Cloth is not considered solid waste.
  • Market waste is not considered municipal solid waste.

Environmental Harm

  • Harmful materials in the environment are called pollutants.

Water Impurities

  • Pollen is not a type of impurity found in water.

Noise

  • Noise is defined as undesirable and unwanted sound.

Air Pollutants

  • Nitrogen gas is not considered an air pollutant.

Incineration

  • Incinerators reduce the volume of waste from 80 to 95%.
  • Complete destruction of toxic wastes is possible through incineration.

Landfills

  • Landfilling with two liners is called secured landfilling.

Health Care Facilities

  • Institutions is not a health care facility.

MSW Characteristics

  • pH is not a physical characteristic of municipal solid waste (MSW).

Effects of Water Pollution

  • Typhoid is an effect of water pollution on human beings.

Air Pollutants

  • Dust is not a secondary pollutant.

Settling Chambers

  • Settling chambers collect dust particles larger than 10µm.

Permissible PM2.5 Levels

  • The permissible range of PM 2.5 for residential areas is 40 - 60.

Physiological Effects

  • Damage to the nerve system is not a physiological effect on human beings.

Radioactive Waste Management

  • High-level radioactive waste can be managed through deep burial.

Biodegradable Substances

  • Oil is a biodegradable organic chemical or substance.

Municipal Solid Waste

  • Municipal solid waste includes domestic, commercial, and institutional waste.

Sanitary Landfills

  • Autoclaving is not a component of a sanitary landfill.

Sound Measurement

  • The unit of sound is the decibel.

Noise Levels

  • The permissible noise level at night in residential areas, as per CPCB, is 45 dB.

Nitrate Removal

  • Denitrification can remove nitrates.

Pollutant Removal

  • Processes to remove gaseous pollutants by dissolution into a liquid solvent is called absorption.

Fluoride Pollution

  • Fluoride pollution mainly affects teeth.

Marine Pollutants

  • Sulphur is not a marine pollutant.

Atmospheric Pollution

  • The presence of solid, liquid, or gaseous compounds in excess concentration is called air pollution.

Air Pollutants

  • Oxygen is not considered an air pollutant.

Natural Pollution

  • Automotives are not a natural pollution source.

Coagulation

  • The purpose of coagulation is to remove colloidal particles.

Biodegradability

  • GIS is not a IT tool used for environment and public health.

Solar Distillation

  • Solar distillation involves using solar energy to evaporate water and collect its condensate within the same closed system.

CPCB Head Office

  • The head office of the Central Pollution Control Board is located in New Delhi.

Carbon Storage

  • Carbon can be stored in organic matter in the form of biomass.

Green Buildings

  • A green building is environmentally responsible and resource-efficient throughout its life cycle.

Hydroponics

  • Aeroponics is a form of hydroponics that does not require a growing medium.
  • Hydroponics cultivates plants without soil.

Sustainable Packaging

  • Maximizing renewable and recycled materials use minimizes environmental damage is sustainable packaging.

Biodegradable Materials

  • Mushroom-based packaging derived from mycelium is known for its biodegradability.

Irrigation

  • Applying drip irrigation is a water efficient irrigation system

Crocodile conservation

  • Madras Crocodile Bank Trust is the first crocodile conservation breeding center in Asia.

Wildlife Week

  • In India, Wildlife Week is celebrated between October 1 and 8.

Environmental Protection Act

  • The Environment (Protection) Act came into force on November 19, 1986.

Earth's Wobbling

  • The slow wobbling of the Earth as it spins on its axis is called precession.

Solar Technique

  • Solar desalination is used to convert salt water to fresh water.

Greenhouse Effect

  • Water vapor, along with carbon dioxide, is largely responsible for the greenhouse effect.

Vertical Farming

  • Vertical farming is also known as Indoor Farming.

Nutrient Film Technique

  • Nutrient film technique (NFT) is used in Vertical Farming.

Objectives

  • The object of coagulation is To remove colloidal particles

E-Waste Rate

  • The rate of E-waste generation increase 5% every year.

ISO

  • Iso44000 is a international standard of collaboration and partnership.

Acid Soil

  • Acidification of soil is the effect of MSW

E-waste Management

Recycling is a method of E-waste management

Constitutional

  • Article 51-A (g) fundamental duties.
  • The state shall endeavor to protect the forests wildife Article-48A was added by the Constitution by 42nd
  • Formal environmental education represents within the class room.

Pollution Control Board

  • To prevent the pollution

The Main of Green IT

  • What is the main focus of Green IT?s waste: Reducing GHG emisssions

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