Environmental Science and Ecology - Comprehensive Mock Test 11

Question 101 Easy

Succulent plants grow in ?

A) Tundra B) Deserts C) Tropical rain forests D) Temperate deciduous forests

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Question 102 Medium

Of the total incident solar radiation the proportion of PAR is ?

A) More than 80% B) About 70% C) About 60% D) Less than 50%

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Question 103 Medium

The 10% law for energy transfer in food chains was given by ?

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

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Question 104 Easy

In an ecosystem, the main source of energy is ?

A) heat released during transpiration B) solar energy C) sugar stored in plants D) heat released during fermentation

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Question 105 Easy

Biotic factors refer to ?

A) Gases produced by industries B) Nutrient-deficient soils C) Living organisms D) Fossil fuel

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Question 106 Medium

The ecological pyramid which can be inverted in a tree eco-system is ?

A) Pyramid of Number B) Pyramid of Energy C) Pyramid of Biomass D) both (b) and (c)

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Question 107 Medium

Microbes that break down the complex organic matter into simple substances like carbon, nitrogen, water etc. are ?

A) Producers B) Decomposers C) Consumers D) Symbionts

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Question 108 Hard

The food chain, in which the microorganisms breakdown the energy-rich organic compounds prepared by the producers, is known as ?

A) Detritus food chain B) Predator food chain C) Parasitic food chain D) Ecosystem

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Question 109 Medium

Animals living at the bottom of the sea are known as ?

A) Lentic B) Pelagic C) Benthic D) Lotic

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Question 110 Easy

The maximum biomass occurs in ?

A) Tropical forests B) Temperate forests C) Taiga D) Alpine vegetation

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