A star's size stabilizes when
A. the star first ignites.
B. it reaches temperatures of about 3 million K.
C. the star's gravitational attraction is balanced by the gravitational attraction to neighboring stars.
D. thermal pressure and gravitational attraction balance each other.
Answer: D
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The only processes that affect rock are weathering and climate.
Answer the following statement true (T) or false (F)
On an upper-level chart, normally we find warm air associated with ____________________ pressure, and cold air associated with ____________________ pressure
Fill in the blank with correct word.
As a country's per capita income increases, its per capita carbon dioxide emissions
A) decrease. B) also increase. C) begin to decrease, at first slowly and then rapidly. D) remain about the same. E) increase for a few years, then remain stable, and then begin to decrease.
Oceanic crust is less dense than continental crust
Indicate whether the statement is true or false