Answer: all of them
Explanation: I think they’re all true
Hope this helps!
A. It’s the thing you change and you’ll measure the E. coli growth
B.
<span>Pesticides prevent the destruction of crops.
Pesticides have their advantages and strong disadvantages. With the dawn of science, scientists have unearthed biochemicals that can eradicate a set of pests that constantly bombard and hoard plants which are one of the source of food for humans. </span>
