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Author Question: The cassava is an important food crop for people living in sub-Saharan Africa. In the 1970s, ... (Read 120 times)

ssal

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on: Jul 16, 2018
The cassava is an important food crop for people living in sub-Saharan Africa. In the 1970s, mealybug infestations destroyed harvests and people starved.
 
  A researcher who studied the mealybug in its native environment discovered a parasitoid wasp that was a natural predator. After extensive testing to determine safety, the parasitoid wasp was introduced into the sub-Saharan region with tremendous effect controlling the mealybug throughout most of Africa. This approach represented a form of A) cultural control.
  B) natural enemies control.
  C) genetic control.
  D) natural chemical control.

Question 2

In general, the movement toward sustainability is
 
  A) declining as interest in sustainable environmental policy declines.
  B) a distant philosophical goal of the environmental movement.
  C) faced with growing opposition from economic interests.
  D) growing with greater interest from governments and businesses.


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izzat

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Reply #1 on: Jul 16, 2018
Answer to Question 1

B

Answer to Question 2

D


ssal

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Reply #2 on: Jul 16, 2018
Correct answers!


izzat

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Reply #3 on: Jul 16, 2018
Great! Please up vote :D


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