Which of the following statements best describes how this object may have formed?
A. Material accumulated into a sphere because of gravity, and it underwent nuclear fusion of hydrogen.
B. A supernova exploded, probably from the late-stage evolution of a high-mass star.
C. A star ejected its outer envelope of gas and plasma.
D. Interstellar gas and dust accumulated due to gravity. Some pockets had enough mass to cause star formation.
Answer: D
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This wave-cut platform indicates
A) a rise of sea level relative to the land.
B) a lowering of sea level relative to the land.
C) movement of a large thrust fault.
D) scouring of the land surface by a tsunami.
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What will be an ideal response?
Which characteristic distinguishes most dinoflagellates from diatoms and coccolithophores?
a. frustule b. auxospore c. flagella d. cilia e. coccoliths
Debris avalanches tend to occur on steep slopes
Indicate whether the statement is true or false