Biology - Mock Test 323

Question 3221

BOD is ?

A) Biological oxygen deficit B) Biosphere oxygen demand C) Biological oxygen demand D) None of these

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Question 3222

Which of the following is the bestg indicator of SO2?

A) Bryophyte B) Lichen C) Algae D) Pteridophyte

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Question 3223

The most important indoor air pollutant is?

A) Sulphur Dioxide B) Carbon Dioxide C) Nitrogen Dioxide D) Radon gas

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Question 3224

The world’s only floating national park is situated in?

A) Manipur B) Kulakumpur C) Bilaspur D) Dispur

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Question 3225

Eco mark is given to an Indian product which is?

A) Rich in protein B) Environment friendly C) Conomically viable D) Pure and unadulterated

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Question 3226

Pyramid of energy in a ecosystem is ?

A) Always inverted B) Always upright C) Spindle shape D) Both upright and inverted depending upon ecosystem

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Question 3227

10% law of energy transfer in food chain was given by ?

A) Lindemann B) Stanley C) Tansley D) Weismann

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Question 3228

Which one lacks both root and stomata?

A) Hydrophyts B) Mesophytes C) Hygrophytes D) Halophytes

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Question 3229

Centre for Ecological Science is situated at?

A) new Delhi B) Allahabad C) Karnal D) Bengaluru

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Question 3230

The term ecosystem is first given by?

A) Reiter B) Aristotal C) Tansley D) Haeckel

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