Question # 1

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

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CO₂

Methane

Oxygen

Nitrous oxide

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

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Parasitism

Mutualism

Commensalism

Predation

Conversion of Nitrates into nitrogen gas is called.

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Denitrification

Assimilation

Ammonification

Nitrogen fixtation

Nitrobactor bacteria converts nitrites into:

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nitrogen

nitrates

urea

ammonia

All Ecosystem of the world join and makes.

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Biosphere

Heterosphere

Geosphere

Hydrosphere

The major process that brings carbon from atmosphere into living world is:

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Photosynthesis

Respiration

Both a and b

None of these

Largest unit of Ecology is.

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Species

Community

Ecosystem

Biosphere

When we eat the onion, our trophic level is

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Primary consumer

Secondary consumer

Decomposer

Producers

Naturally found in graphite and diamond.

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Nitrogen

Oxygen

Hydrogen

Carbon

Which of the following is the abiotic part of ecosystems?

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Grass

Goat

Lion

Soil

Ectoparasite is

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Ascaris

Amoeba

Leech

Plasmodium

The study of the ralationship between orgaisms and their environment called:

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Biology

Microbiology

Ecology

Genetics

Biospher surrounding the earth is about:

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17 km

18 km

19 km

20 km

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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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