Answer:
His purpose is to convey a negative tone toward the tractors. They are similar to insects that destroy crops, and just like a plague of insects, the tractors are virtually unstoppable.
Explanation:
He think basically that tractors destroy things and are unstoppable just as insects do with plagues
<span>Definitely ineffective, change the topic in order to briefly cover something not on the agenda- that is an example of ineffective group participation.</span><span>its the group leader insists that everyone come to an agreement in the next five minutes.
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<em>down</em><em> </em>is the preposition.
