The answer would be the result of the experiment and hypothesis.
Answer:
<u><em>The major advantage of DDT at that time when it was used as a pesticide is that the DDT was very effective as a pesticide and it killed almost all the pests on which it was sprayed. </em></u>
Explanation:
<u><em>It killed all the insect and pests that was present in the</em></u>
<u><em>united states at that time</em></u>.
<h3><em><u>Hope this helps u!!!!!!!!!!!!!!!!!!</u></em></h3>