Traditional medicines, which are used by about ________% of people worldwide, are primarily derived from wild plants.
A) 30
B) 50
C) 70
D) 80
E) 90
Correct Answer:
Verified
Q10: Coastal wetlands, or marshes, serve to:
A)purify water
Q11: Clear-cutting of rain forests may result in
Q12: About _% of the carbon dioxide produced
Q13: Tropical rain forests provide all of the
Q14: In the soil, _ convert atmospheric nitrogen
Q16: The project to straighten the Kissimmee River
Q17: The number of different types of organismsplants,
Q18: Forests influence local climates by:
A)increasing the temperature
Q19: Plants prevent erosion by:
A)holding water.
B)supporting animals that
Q20: Plants help reduce flooding by:
A)removing soil.
B)increasing the
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