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Q1.
Biomes are regional assemblages of living things.
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Q2.
Heterotrophs obtain their energy from sunlight
or from inorganic
compounds.
compounds.
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Q3. Net
primary productivity is usually about 80–90 per cent of gross primary
productivity.
productivity.
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Q4.
Sulphur is a bioelement.
Q5.
The carbon cycle is an example of a gaseous
biogeochemical cycle.
Q6.
Five per cent of the water in the hydrosphere
is fresh water.
Q7.
The oceans contain 90 per cent of all
water in the hydrosphere.
Q8. Substrate
has little effect on soil formation.
Q9.
Salinization is a soil-forming process?
.
Q10.
Volcanoes emit carbon dioxide.
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Q11. Atmospheric
ozone is essential for the survival of life on Earth.
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Q12.
Temperature inversions always occur near
the ground.
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Q13.
The stratosphere plays a minor role in atmospheric
chemistry.
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Q14.
Polar maritime air is typically cold and
dry.
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Q15.
According to the Köppen system of climate
classification, dry climates
occur where annual potential evapotranspiration exceeds annual precipitation.
occur where annual potential evapotranspiration exceeds annual precipitation.
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© copyright Hodder Arnold 2004
