The most important attribute of Earth is that it is a(n) ____________________ system, providing the precise combinations of objects and characteristics to permit the existence of life
Fill in the blank(s) with correct word
life-support
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The relative humidity is often near 100% in the polar regions
Indicate whether the statement is true or false
A low-throughput economy works best when population growth can be slowed.?
Answer the following statement true (T) or false (F)
Select the choice below that best describes the role of volatiles in an ascending magma
A) Volatiles increase the rate of crystallization in intrusive structures. B) Volatiles will force the magma to contract as it rises. C) Volatiles will shatter surrounding rocks, making it easier for the magma to rise. D) Volatiles will expand with decreasing pressure, then melt upward.
If a stream has a meandering section, that section is most likely to be ________.
A. braided B. in its upstream section near its source or sources or in its downstream section, near its mouth C. in its upstream section near its source or sources D. in its downstream section, near its mouth