Which of the following is the biggest threat to the monarch butterflies’ annual migration? a. illegal logging c. airplanes b. cold winters d. new predators select the best answer from the choices provided a b c d

Option 'A' is correct.

Explanation:

The biggest threat to Monarch butterflies is illegal logging in Mexico.

Illegal logging of butterflies has been increased in the previous years, during that period, monarch butterflies were sold illegally in violation of national law.

Now, the government starts eradicating illegal logging from the root.

Hence, option 'A' is correct.

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explanation:

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explanation:

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