4 Select the correct answer.

Andrew, a highly mechanized farmer, has large acres of farmland. He wants to apply pesticides and fertilizers to all his crops spread across his

large land. What should Andrew use to spray pesticides and fertilizers on his land?

OA. trucks

OB. airplanes

Ос. .

harvesters

OD. planters

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The correct answer is:

planters (D)

Explanation:

The key statement in the question is that Andrew wants to apply pesticides and fertilizers to all his crops across his large land. The most effective way of doing this is by using a planter to apply both the fertilizer and the pesticide as the planting occurs. This will ensure that the fertilizers and pesticides are applied directly to the crops and not scattered on the vast land.

stratosphere: as the altitude increases, the air temperature increases. the stratosphere has a layer of ozone, called the ozone layer. this layer absorbs most of the ultraviolet radiation from sunlight. this results in the stratosphere being warmer.