Only 2% of the earth's land surface is covered by terrestrial biodiversity hotspots. How many of the world's flowering plant species live in these hot spots?
A. 0.5%
B. 2%
C. 12%
D. 30%
E. 50%
Answer: E
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Why are grain size and composition often used to name sedimentary rocks?
A) These are indicators of what type of volcano the rocks came from. B) These are indicators of how deep within the earth the rocks formed. C) They are easily observed and easily distinguishable. D) These are indicators of how deep within the sea the rocks formed.
Extratropical cyclones are found ____
A) inside the tropics B) outside the tropics C) at the equator D) both inside and outside the tropics
Instructions: Choose one answer from each pair of selections. Would rain with a pH value of 8.2 be considered ACIDIC or ALKALINE?
Define partial melting and explain how it affects the magma composition
What will be an ideal response?