Which stimulus most likely caused the leaves on these trees to turn from green to yellow?
A. too much water
B. change in soil
C. change in seasons
D. too much sunlight

The change in the season

Explanation:

Temperature, light, and water supply have an influence on the degree and the duration of fall colors. Low temperatures above freezing will favor anticyclonic formation producing bright reds in maples. However, early frost will weaken the brilliant red color. Rainy and/or overcast days tend to increase the intensity of fall colors.

d. making up measurements to record.

answer: a. a gene that causes a specific trait.