Question

Water is one factor that is necessary for growth. A plant will wilt and be unable to carry on photosynthesis without sufficient water. Another factor that affects growth is temperature. Within an ideal temperature range, plants will grow, increasing the rate of growth when there is an increase in temperature.

Which opening sentence goes best with the details in the above paragraph?
A. There are several factors that may affect the growth of a plant.
B. Too much water may rot the roots and cause a plant to die.
C. The length of daylight determines when a plant will produce a flower.
D. If temperatures are too low, a plant may freeze and die.

Answer 1

A—
This sentence pretty much sums up what the writer of the passage wants to talk about. The other ones do not fit with the sentence “water is one factor that is necessary for growth” and do not fit the idea of the passage, which is what factors affect plant growth.