Secondary succession occurs in ecosystems withou soil

Was Africa and Arabia one Continant at one time in geographic history?

What are two ways that an ocean can affect a coastline

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How many days does it take to climb mount everest

Which of the following countries has free and fair elections and requires people to vote once they reach age 18 (with a few exceptions) ? A. Brazil B. Colombia C. the United States D. Cuba

What are the stages of the life cycle of the Sun? A. Red giant → main sequence star → white dwarf B. Main sequence star → red giant → white dwarf C. Main sequence star → white dwarf → red giant D. White dwarf → main sequence star → red giant

Which of the following terms best characterizes the government of Somalia? A. a parliamentary democracy B. a presidential democracy C. an anarchy D. a monarchy

Fault-block mountains are formed when a shift takes place along a fault line and a. one side drops into the ocean b. one side is elevated c. one side drops into a fault d. both sides are elevated

Describe how the idea of archaeological context affects how an archaeological site is excavated. What must archaeologists do in order to preserve context?

If sea level rises above a coral reef, what may happen to the reef? << read less