Question

which of these have caused extensive damage to crops​

Answer 1

Answer:

Insects are responsible for two major kinds of damage to growing crops. First is direct injury done to the plant by the feeding insect, which eats leaves or burrows in stems, fruit, or roots. ... Examples include the viral diseases of sugar beets and potatoes, carried from plant to plant by aphids.

Explanation:

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Answer 2

Answer:

… where are the options

Explanation: