Question # 1

The thickness of biosphere is:

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02 km

20 km

50 km

200 km

Naturally found in graphite and diamond.

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Nitrogen

Oxygen

Hydrogen

Carbon

Identify the correctly matched pair.

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Rainfall-biotic factor in Ecosystem

Corn-secondary consumers

Global warming fossil fuel formating

Renewable natural resource air

the type of symbolic association in which partner gets benefits while other is neither benefited nor harmed is called:

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Commensalism

Mutualism

Parasitism

Predation

A relationship between species in which both species benefit is called.

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Parasitism

Mutualism

Symbiosis

Commensalism

Which one is an example of epiphyte?

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Mosquito

Orchid

rhizobium

Plasmodium

Primary source of energy for all ecosystem is.

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Electricity

Sun

Fire

Nutrients

250 years age, the population of world was approximately ------------ million.

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400

500

600

700

Which one of the following is not an endoparasite?

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Ascaris

Plasmodium

Mosquito

Entamoeba

In the food chain ''grass→grasshopper''→sparrow→ hawk'',the secondary consumers is:

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grass

grasshopper

sparrow

hawk

All herbivore animals are:

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Grass eater

Parasites

Predaters

Prey

A community and its biotic components is known as:

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Biosphere

Habitat

Ecosystem

Food web

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10th Class Biology Chapter 16 Man and His Environment English Medium KPK Boards Online Mcqs MCQs With Answers

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