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Environmental studies
By saif
Which of the following is an example of non renewable resources?
wind vegetation
Coal and minerals
water
Which of the following is renewable resource?
wind water
Flora and fauna
All of these
Which gas in stratosphere does provide protection to our life?
Argon Nitrogen
Oxygen Ozone
The Life spporting gases such as O2,co2 and n2 are chiefly concentrated in the?
troposphere
Nitrogen
homosphere
stratosphere
Floods can be prevented by ?
afforestation
Removing the top soil
Cutting the forest
Tilling the land
Biogas generation is mainly based on principle of?
Anaerobic degradation
Aerobic decomposition
putrefaction
None of these
Which one of the following is not a fossil fuel?
petroleum coil
Natural gas uranium
The depth of the last individual of a species is called…?
extinction endanger
(i)Neither(ii)Nor
diversity
Atomic energy is obtained by using ores?
copper uranium
lead Crude oil
… is the major raw material for biogas?
Tree leaves grass
Cow dung Waste from kitchen
In the atmosphere , the layer above the troposphere is…..?
exosphere mesosphere
stratosphere
thermosphere
Both power and manure are provided by…..?
Hydroelectric plants
Gobar gas plant
Nuclear power plant
Thermal plant
Which of the following is not considered to be natural resource?
soil river
scenery climate
All of the above are example of natural resource
Total earth’s surface covered by water is….?
75% 80%
60% 65%
Biotic component of biosphere is not constituted by….?
producer decomposer
consumer air
An increase in carbon dioxide content In the atmosphere would not cause….?More heat to retained by environment
Increase in photosynthesis in plant
Global warming Abundance of desert plants
Oxygen is returned to atmosphere mainly by….?
respiration photosynthesis
fungi Burning of fuel
Among the given options, which one is not correct for use of large amount of fertilizers and pesticides….?They are eco-friendly
They turn the fields barre nafter some time
They adversely affect the useful component from soil
They destroy the soil fertility
Which rays are suppored by ozone layer in stratosphere….?
UV rays Infrared
X-rays Gamma rays
Atmpsphere not uniformly heated by the sun does not cause….?
Air flows Variations in climate
rainfall tides
Which is not true….?
Lithosphere includes the crust and the uppermost mantle
Lithosphere is underlain by the asthenosphere
Lithosphere provides timber
Lithosphere is broken into tectonic plates
Which is false about biosphere….?
It is the global sum of all eco system
It can also be called the zone of life on earth
It does not contain microbes
It has evolved at least some 3.5 billion years ago
Right AnswerHow can you so lucky
Wrong AnswerBetter luck next time
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