When looking at a hand sample of an igneous rock, how would you tell if it is plutonic or volcanic? What will be an ideal response?
ANS:If
the texture is phaneritic, the magma cooled slowly, and the rock is plutonic. If the texture is
aphanitic, the magma cooled rapidly, and the rock is volcanic.
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What is the central thesis of the theory of organic evolution?
The formula to determine density is
A. volume/mass. B. mass/weight. C. gravity/mass. D. mass/volume. E. weight/gravity.
The Charney effect refers to the relationship of _______. The effect was named after Jules Charney who documented the relationship in the early 1970s
a. fewer plants resulted in a higher albedo, thus lowering humidity and local precipitation b. fewer plants resulted in a lower albedo, thus lowering humidity and local precipitation c. dry conditions and drought actually made it easier to till and plant the soil d. dry conditions and drought actually led to more food per capita as people left the Sahel region
Which property of water means it can physically break apart rock as mechanical weathering?
A. hydrogen bonding B. capillarity C. universal solvent D. liquidity E. ice expansion