(a) Forest (b) Desert
(c) Ocean (d) Mountain
Which of the following statement about the forest is not correct
(a) Forest reduces soil erosion (b) Provides recreational opportunities
(c) Provides economic development (d) None of the above
Lignite, bituminous and anthracite are different types of
(a) Nuclear fuel (b) Coal
(c) Natural gas (d) Biogas
(a) Air pollution (b) Soil pollution
(c) Noise pollution (d) Water pollution
Study of trends in human population growth and prediction of future growth is called
(a) Demography (b) Biography
(c) paleography (d) psychology
Which of the following is not a method of water conservation
(a) rain water harvesting (b) ground water extraction
(c) improving irrigation efficiency (d) avoiding water wastge
Formation of ozone is
(a) oxidation reaction (b) reduction reaction
(c) photochemical reaction (d) none of these
The drop in air temperature at a rate of
6.50 C per 1000 m increase in altitude of troposphere
is known as
(a) Environmental lapse rate (b) Environmental degradation
(c) Green house effect (d) Global warming
Zone consisting air, water and soil is known as
(a) Hydrosphere (b) Atmosphere
(c) Lithosphere (d) Biosphere
Word oikos means __________ and logos means _______
(a) Houses and study of (b) Study and houses
(c) Only houses (d) Study of people
Nitrogen gets oxidized into
(a) Nitrates and ammonia (b) Ammonia and urea
(c) Urea and nitrite (d) Nitrates and nitrites
Earthworms and bacteria are called
(a) Producers (b) Consumers
(c) Decomposers (e) None of these
Region where fresh water meets salt water is called
(a) Sea (b) Lake
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