Which of the following processes is NOT considered to be chemical weathering?
A. thermal expansion
B. hydrolysis
C. reaction with acids from decaying plants
D. oxidation
E. dissolution
Answer: A
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Which of the following describes a role that satellites cannot do?
A. They provide information about surface water temperatures. B. They provide information about the Earth-atmosphere energy balance. C. They monitor the percolation of water in soils. D. They monitor the amount of snow cover.
How come an animal's carbon-14 levels do not start to decrease until it dies?
A) because it constantly replenishes its carbon-14 supply by eating plants with carbon-14 in them B) because it constantly replenishes its carbon-14 supply by breathing air with carbon-14 in it C) because it is constantly being bombarded with cosmic rays D) carbon-14 only starts to decay after the animal dies E) The carbon-14 levels do not decrease because the carbon-13 in its skin protects it from cosmic rays.
The growth rate of the world population equals ________.
A. the death rate minus the birthrate B. the birthrate plus the death rate C. the birthrate minus the death rate D. None of these choices are correct.
On an orthophoto map, one might expect to find ________
A) distortion-free photographs B) many problems with map distortion C) sketches rather than true projections D) cultural but not physical features E) symbols that are difficult to read