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

Question # 1

Which of the following air pollutant react with water in atmosphere producing acid rain?

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Hydrocarbons fluorine

Flyash, soot

chlorine , smoke

Sulphur dioxide, Nitrogen oxide.

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Question # 2

In the atmosphere, carbon is found as

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graphite

diamond

carbonates

carbon dioxide

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Question # 3

A group of organisms of the same species inhabiting a species geographical area ta a particular time is called:

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population

community

ecosystem

species

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Question # 4

The type of symbiotic relationship in which one member get benefit and other is unaffected is called.

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Parasitism

Mutualism

Commensalism

Predation

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Question # 5

it is example of secondary consumer.

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Cattle

Snake

Lion

Frog

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Question # 6

The producers of ecosystem are:

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fungi

bacteria

green plants

man

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Question # 7

It is an example of primary consumers.

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Cattles

Snake

Lion

Tiger

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Question # 8

Water , soil, air, temperature, wind and sunlight are example of:

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Biotic factors

Biomass

Environment

Abiotic factors

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Question # 9

The nitrate forming bacteria are.

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Rhizobium

Nitrosomonas

Nitrobacter

Cocci

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Question # 10

The only source of energy for all ecosystems of the world is.

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Sun

Moon

Plants

Ocean

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Question # 11

The populations that live in a habitat and interact with one another are collectively called.

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Biosphere

Ecosystem

Community

species

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Question # 12

The current level of urbanization in Pakistan is about_____ which is not high by global standards.

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23%

32%

36%

39%

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Question # 13

An example of endoparasite :

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Mosquitoes

Leech

Lice

Plasmodium

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