Option A: The most valuable and the richest ecosystems on earth
Option B: They play a critical pat in the earth’s life support systems and house 50% and possibly as much as 90% of all the species on earth
Option C: They are a key storehouse of foods, oils and minerals and source of ingredients that make up a range of medical treatments
Option D: All of the above
Correct Answer: All of the above ✔
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Option A: Many parts of the world, but primarily in tropical rain forests
Option B: They live in highly organized colonies to a strict caste system
Option C: The nests are built to provide central heating and air-conditioning
Option D: All of the above
Correct Answer: All of the above ✔
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Option A: Transboundary pollution describes polluted air and water or any other contaminated waste that is generated in ove country and transmitted to other
Option B: The most pervasive pollutant is sulphur dioxide a by-product of the burning of fossil fuels in power stations
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: The tallest living coniferous evergreen tree
Option B: To reach a height of over 300 feet
Option C: The Sequia sempervirens (the redwood tree is also very long lived) are found from southwest
Option D: All of the above
Correct Answer: All of the above ✔
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Option A: The study of fossil plants and animals and of the rock formations where they are found
Option B: The information is used increasingly in environmental sciences to build up a picture of past environments
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: A dense accumulation of only partially decomposed plant materials which has formed in wetlands over a period of thousand of years
Option B: It collects in still water which does not have enough oxygen to complete the total process of decay
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: 1970
Option B: 1972
Option C: 1974
Option D: 1976
Correct Answer: 1970 ✔
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Option A: The protective layer of ozone in the upper stratosphere, found at a level between 15 and 150 km above
Option B: The Earth which prevents harmful ultraviolet B radiation which causes skin cancer and threatens plant life from reaching the ground
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: The prairies of North America and the steppe of Russia and Central Asia
Option B: Grassland ecosystem support thousand of different species, above and below the ground
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: A group of plants which include maize and sorghum
Option B: The process of carbon fixation usually found in tropical plants with high growth rates
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: An abundant family of simple mostly marine organisms
Option B: The important to scientists who are studying climatic change
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: The large coniferous forest areas in the northern hemisphere between the latitudes of 50
Option B: Large areas of boreal forest are found in Scandinavia, Siberia and Northern America
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: A group of plants including the soya bean wheat and cotton
Option B: The process of carbon fixation during photosynthesis
Option C: The prod use a compound essential for growth that consists of molecules each containing three atoms of carbon
Option D: All of the above
Correct Answer: All of the above ✔
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Biota means:
Option A: The general description of all the flora and fauna of the planet
Option B: It covers all living things from the tiniest submicroscopic organism to the elephant and giant redwood tree
Option C: All of which are supported by the biosphere
Option D: All of the above
Correct Answer: All of the above ✔
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Option A: The part of the earth that supports life and consists of the soil, oceans
Option B: The waterways and the atmosphere upto 15 km above the earth’s surface
Option C: Waterways and the
Option D: None of these
Correct Answer: ✔
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Option A: The protected land and coastal areas
Option B: That are approved under the Man and the Biosphere
Option C: In conjunction with the Conception on International Trade in Endangered Species (CITES)
Option D: All of the above
Correct Answer: All of the above ✔
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Option A: The north polar regions but it has also become used to denote the territory lying within the Arctic Circle
Option B: The landscape, climate and plant and animal life found in those regions
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: A type of pollution which washes out of the atmosphere as dilute sulphuric and nitric acids
Option B: It tends to be a regional rather than a global phenomenon linked to particular industrial activities and meteorological conditions
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: The process by which plants and animals become accustomed to unusual environmental conditions
Option B: That they are able to live and produce
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: The cultivation and harvest of freshwater
Option B: Marine animals and plants
Option C: In ponds tanks cages or on protected beds
Option D: All of the above
Correct Answer: All of the above ✔
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Option A: The name given to the first report of changes in the amount of ozone
Option B: The upper layers of the atmosphere over the south pole
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: Egyptian clover (barseem)Trifolium alexandrnum
Option B: Dhaincha (jayannti) Sesbania aculeata
Option C: Cowpea (lobia) Vigna sinensis
Option D: All of the above
Correct Answer: All of the above ✔
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Option A: Fertilizer: Manure: any substance applied to soil fertility and increase plant growth and yield, these may be organic in organic or of bio-origin
Option B: Organic fertilizers: prepared from plant residues (cotton seedcake, groundnut cake etc.)
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: Inorganic fertilizers
Option B: Bio-origin fertilizers
Option C: Green manuring
Option D: All of the above
Correct Answer: Bio-origin fertilizers ✔
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Option A: Agents that pollute; these may be gaseous (vapours) or particulate (solid and liquid particles)
Option B: On the basis of the amount and their relative harmfulness or toxicity
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: Apiary
Option B: Apiology
Option C: Apitoxin
Option D: Bee(s)
Correct Answer: All of the above ✔
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Option A: An undesirable change in physical, chemical or biological characteristics of air, water or land that may
Option B: Will harmfully affect human life, directly or indirectly
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: Methods of raising tree crops and their growth and care upto the time of the final harvesting
Option B: Silviculture is the science and art of cultivating forest crops, based on knowledge of silvics
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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Option A: To society of American forests (SAF) is an eco-system characterized by a more or less dense and extensive tree cover
Option B: A plant community with predominance of trees and other woody vegetation, growing more or less closely together
Option C: Both (a) & (b)
Option D: None of these
Correct Answer: Both (a) & (b) ✔
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