Environmental Science - General Knowledge Questions and Answers

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The most important reason for decrease in biodiversity is ?

A)

habitat pollution


B)

introduction of exotic species


C)

deforestation


D)

habitat destruction



Correct Answer :

habitat destruction

Red data book contains data of?

A)

plant species


B)

animal species


C)

economically significant species


D)

threatened species



Correct Answer :

threatened species

The concept of carbon credit originated from which one of the following?

A)

Earth Summit, Rio de Janeiro


B)

Kyoto Protocol


C)

Montreal Protocol


D)

G8 Summit, Hciligendamm



Correct Answer :

Kyoto Protocol

Which of the following cycle is the slowest of the matter cycles?

A)

Sulphur cycle


B)

Phosphorus cycle


C)

Carbon cycle


D)

Nitrogen cycle



Correct Answer :

Phosphorus cycle

The natural heritage of India was made famous in Rudyard Kipling’s book ?

A)

The Jungle Book


B)

The forest fire


C)

Heritage of Great India


D)

Bharat ek khoj



Correct Answer :

The Jungle Book

Ocean currents are determined by?

A)

Proximity to land


B)

Underwater geography


C)

Atmospheric circulation


D)

Season



Correct Answer :

Atmospheric circulation

Phosphate is mined primarily for?

A)

Production of phosphor screens


B)

Production of fertilizer


C)

Production of phosphorus bombs


D)

None of these



Correct Answer :

Production of fertilizer

Which of the following energy sources does not produce carbon dioxide?

A)

Oil


B)

Uranium


C)

Coal


D)

Natural gas



Correct Answer :

Uranium

The environment includes?

A)

Abiotic factors


B)

Biotic factors


C)

Oxygen and Nitrogen


D)

Abiotic and biotic factors



Correct Answer :

Abiotic and biotic factors

Who said ‘Man is a social animal’?

A)

Laski


B)

Plato


C)

Aristotle


D)

Rousseau



Correct Answer :

Aristotle

World Environment day is celebrated every year on?

A)

5th June


B)

5th July


C)

6th June


D)

6th August



Correct Answer :

5th June

Which of the following will be released during combustion of fossil fuels?

A)
Carbon dioxide

B)
Oxide of nitrogen

C)
Carbon monoxide

D)
All of these


Correct Answer :

All of these

Pedology is the study of ?

A)
Soil

B)
Rocks

C)
Locomotion of animals

D)

Crop disease



Correct Answer :

Soil


Explanation :

Pedology, scientific discipline concerned with all aspects of soils, including their physical and chemical properties, the role of organisms in soil production and in relation to soil character, the description and mapping of soil units, and the origin and formation of soils.

Which of the following layer of atmosphere has maximum density?

A)
Stratosphere

B)
Troposphere

C)
Mesosphere

D)

Thermosphere



Correct Answer :

Troposphere


Explanation :

The troposphere is the lowest portion of Earth's atmosphere, and is also where nearly all weather takes place. It contains approximately 75% of the atmosphere's mass and 99% of the total mass of water vapor and aerosols.

Approximate percentage of freshwater on the earth is?

A)
2%

B)
70%

C)
3%

D)
8%


Correct Answer :

3%


Explanation :

approximately 96% of all water on the planet is salt water. Of the remaining approximate 4% of the earth's total water (the 'fresh' water), most of it is unavailable and locked up in ice caps and glaciers hence About percentage of fresh water is 3%

Which of the following instrument is used to measure the wind velocity?

A)
Psychrometer

B)
Hydrogrophs

C)
Anemometer

D)
Radar


Correct Answer :

Anemometer


Explanation :

An anemometer is an instrument that measures wind speed and wind pressureand.
Anemometers are important tools for meteorologists, who study weather patterns. They are also important to the work of physicists, who study the way air moves.

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