Question

Required

1.What is approximately value of nitrogen gas in Atmosphere?Required to answer. Single choice.

(1 Point)

72%

78%

60%

21%

2.Give the name of gas produced by air-conditions, refrigeration and colour industries?QuestionRequired to answer. Single choice.

(1 Point)

Oxygen

Carbon dioxide

Nitrogen

CFC

3.What is the name of environmental component formed by seas, rivers, lakes etc?Required to answer. Single choice.

(1 Point)

atmosphere

hydrosphere

biosphere

lithosphere

4.What height the troposphere range from in Km.?Required to answer. Single choice.

(1 Point)

0-11

Nov-50

50-85

85-500

5.Ozone is naturally produced in ___Required to answer. Single choice.

(1 Point)

Troposphere

Stratosphere

Mesosphere

None of above

6.The outer most part of earth is known as___Required to answer. Single choice.

(1 Point)

Focus

Inner core

Crust

Outer core

7.Photosynthesis is done by___Required to answer. Single choice.

(1 Point)

Insects

Animal

Plant

Human

8.What is the name of biotic components which eat grass and plants only?Required to answer. Single choice.

(1 Point)

Herbivores

omnivores

carnivores

Decomposers

9.Lithosphere consists of ___Required to answer. Single choice.

(1 Point)

Land

Water

Forest

None of the above

10.Migration of rural people from villages to cities for habitation means what ?Required to answer. Single choice.

(1 Point)

Urbanization

Industrilization

Desertification

Population Explosion

11.Coal, Petroleum and natural gases are called _____ fuel energy resources.Required to answer. Single choice.

(1 Point)

Abiotic

Biotic

Fossil

Living

12.Cutting of trees will..............Required to answer. Single choice.

(1 Point)

Increase oxygen

Increase carbon dioxide

Increase ammonia

Reduce carbon dioxide

13.Greenhouse effect is due toRequired to answer. Single choice.

(1 Point)

Oxygen

Sulpher dioxide

Carbon dioxide

Nitrogen

14.Food chain consists ofRequired to answer. Single choice.

(1 Point)

Carnivorous

Herbivorous

Producer

All of them

15.The component of ecosystem areRequired to answer. Single choice.

(1 Point)

Land

Atmosphere

River

All of them

16.The upper most portion of the atmosphere is known as ------------ .Required to answer. Single choice.

(1 Point)

Mesosphere

Thermosphere

Troposphere

Stratosphere

17.In which category of bio-tic component, Animals and human being is falling ?Required to answer. Single choice.

(1 Point)

Producers

Consumers

Decomposer

Transformer

18.Identify the factor responsible for climate changeRequired to answer. Single choice.

(1 Point)

Population explosion

desertification

Draughts and famines

Hot and cold stream of ocean

19.Identify types of forest in IndiaRequired to answer. Single choice.

(1 Point)

Deciduous

Alpine

Tropical

All of them

20.Name the gas in highest proportions in the constituents of biogas.Required to answer. Single choice.

(1 Point)

Methane

Carbon

Oxygen

Nitrogen

​

Answer 1

Answer:

1. 78

2. CFC

3.hydrosphere

6. crust

7. plant

Answer 2

Answer:

1= 21%

2.cfc

3.Hydrosphere

4.The upper boundary of the layer, known as the tropopause, ranges in height from 5 miles (8 km) near the poles up to 11 miles (18 km) above the equator. Its height also varies with the seasons; highest in the summer and lowest in the winter.

5.stratosphere

6.lithosphere

7.plant

8.Herbivores

9.non of the above

10.