Halley's comet contains carbon (C), hydrogen (H), oxygen (O), and nitrogen (N) in ratios similar to that in the human body.
Answer the following statement true (T) or false (F)
True
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Which of the following statements are FALSE about shifting cultivation
A) People clear a patch of land and burn the rubble. B) The soils on these patches are depleted rather quickly. C) The soils usually become permanently infertile. D) After the soil in one patch is depleted, the farmers move on to clear another. E) None of the above is false about shifting cultivation.
Which environmental lapse rate represents the most unstable atmosphere in a layer of unsaturated air??
a. ?1°C per 1,000 m b. ?3°C per 1,000 m c. ?6°C per 1,000 m d. ?9°C per 1,000 m e. ?11°C per 1,000 m
What is another term for a nonnative species?
A. native B. invasive C. keystone D. indicator E. foundation
What is it called when the Sun heats the Earth's surface, and the heated air above it rises?
A. convergent lifting B. convective lifting C. none of these are correct D. frontal lifting E. adiabatic lifting