Historically,the greatest threat to grasslands has been
A) damage by off-road vehicles.
B) air pollution.
C) conversion to farmland.
D) global climate change.
E) mineral extraction.
Correct Answer:
Verified
Q8: Which of the following is true?
A)Humans may
Q9: Most of the species that are yet
Q10: Use the following graph to answer the
Q11: One biome type that has not been
Q12: We are usually referring to species diversity
Q14: The main reason for the current high
Q16: In contrast with the _,the soil of
Q17: Species diversity is most concentrated in
A)North America
Q18: Use the following graph to answer the
Q20: Ecological diversity is a measure of the
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