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1. Leaching of soil nutrients is an example of A
A. transfer of materials.
B. transformation of materials.
C. transfer of energy.
D. transformation of energy.
2. The Second Law of Thermodynamics states that in any C
A. open system, entropy tends to increase sponta-
neously.
B. open system, entropy tends to decrease sponta-
neously.
C. isolated system, entropy tends to increase sponta-
neously.
D. isolated system, entropy tends to decrease sponta-
neously.
3. Which is an example of negative feedback? B
A. Loss of vegetation leading to soil erosion leading to
further loss of vegetation.
B. A decline in a large predator population after they
have eaten most of their prey
population.
C. Melting of permafrost in the tundra due to climatic
change leading to further release of
methane, causing further change.
D. Unsustainable slash and burn agriculture practices
in tropical rain forests.
4. A lake with a stream flowing into it, but with water lost D
only by evaporation, is an example of a system which
is
A. isolated.
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, ESS practice questions part 1 multiple choice
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B. stable and closed.
C. unstable and closed.
D. open.
5. Which of following factors would prevent the ecos- C
phere being classified as a closed system?
A. the input of solar energy
B. the re-radiation to space of heat energy
C. the arrival of rocks as meteorites from space
D. the unstable state of equilibrium
6. Most food chains seldom have more than four tropic C
levels because
A. in most ecosystems, competition for food is very
great.
B. the total biodiversity in any ecosystem is limited.
C. energy is lost as it moves along a food chain and
little remains at the level of the top carnivore.
D. in many parts of the world, many species have be-
come extinct and complex ecosystems are rare.
7. Which of the statements about negative feedback is D
correct?
A. Negative feedback amplifies or increases change in
a system.
B. Negative feedback consumes energy from a sys-
tem.
C. Negative feedback is undesirable for the environ-
ment.
D. Negative feedback counteracts deviation from equi-
librium in a system.
8. A
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