GIVING BRAINLIEST!
In the 1940s, American farmers lost 7% of their crops to pests. By the 1990s crop losses due to pests had risen to 13%. Select a reason for this increase.

A. Between the 1940s and 1990s more land was being developed for houses and city space. Less land was used to grow crops. The increased number of crops in smaller spaces led to increased numbers of pests.

B. The farmers were using reasonably effective pesticides in the 1940s. However, over time, more pests have evolved to become more resistant to the pesticides.

C. The pesticides decreased in quality due to America's expanding economy, allowing more pests to successfully feed on the crops.

D. Pests became used to the taste of pesticides and were able to detect when crops had been sprayed.

Question

04-02-2021
Biology

Answered

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GIVING BRAINLIEST!
In the 1940s, American farmers lost 7% of their crops to pests. By the 1990s crop losses due to pests had risen to 13%. Select a reason for this increase.

A. Between the 1940s and 1990s more land was being developed for houses and city space. Less land was used to grow crops. The increased number of crops in smaller spaces led to increased numbers of pests.

B. The farmers were using reasonably effective pesticides in the 1940s. However, over time, more pests have evolved to become more resistant to the pesticides.

C. The pesticides decreased in quality due to America's expanding economy, allowing more pests to successfully feed on the crops.

D. Pests became used to the taste of pesticides and were able to detect when crops had been sprayed.

Sagot :

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