Which of the following terms refers to the change of state of ice into water vapour?
A. sublimation
B. condensation
C. crystallization
D. melting
Answer: A
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Much of the U.S. West Coast has been tectonically uplifted in the last few million years
Indicate whether the statement is true or false.
We easily notice recoil when we throw a heavy ball while standing on a skateboard. If we go through the throwing motion while holding onto the ball, our net recoil will be
A. small, but noticeable. B. the same as before. C. zero, without friction effects.
Which of the following differences between warm-water and cold-water species is not directly caused by differences in water temperature?
A) Cold water organisms reproduce later and less frequently than those in tropical waters. B) Floating organisms are physically smaller in warm waters than in colder waters. C) Total biomass of plankton in the tropics is far less than that found in high-latitude waters. D) Tropical organisms grow faster and have a shorter life expectancy than those in colder water. E) Warm-water species often have ornate plumage which is absent in the larger cold-water species.
The highest mountain range in Russia is:
A) Urals B) Balkans C) Caucasus D) Pamirs E) Tien Shan