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Biology 10th Class English Medium Chapter 16 Online Test MCQs With Answers

Question # 1

A community and its biotic components is known as:

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Biosphere

Habitat

Ecosystem

Food web

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Question # 2

A group of species of same species living in a particular area is called:

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Population

Community

Aboitic factor

Ecology

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Question # 3

A network of all the feeding relationships in an ecosystem is called.

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Food chain

Food web

Trophic level

Energy flow

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Question # 4

Which Charles Eiton developed the concept of ecological pyramids?

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1926

1927

1928

1929

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Question # 5

Organisms in the ecosystem that are responisble for recycling of plant and animal wastes are:

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Producers

Consumers

Decomposers

Compititors

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Question # 6

The conversion of ammonia to nitrates is carried out by soil bacteria. This process is called.

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Nitrification

Denitrification

Nitrogen fixation

Assimilation

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Question # 7

Abiotic component of ecosystem is:

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Producers

Herbivores

Camivore

Oxygen

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Question # 8

Which of the following is not an example of green house gas?

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CO₂

Methane

Oxygen

Nitrous oxide

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Question # 9

An example of carnivores plant is:

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Mosses

Ferns

Rose Plant

Sundew

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Question # 10

______ get solar energy and transform it into chemical energy by the process of photosynthesis.

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Decomposers

Producers

consumers

Predators

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Question # 11

------------ is use for the cleaning of sewage water.

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Bacteria

Virus

Algae

Fungi

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Question # 12

The materials flow forms one trophic level to the next by means of:

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food chains

food webs

energy pyramids

both A and B

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Question # 13

Naturally found in graphite and diamond.

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Nitrogen

Oxygen

Hydrogen

Carbon

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