You notice that two small birch trees sprout and begin to grow among the sunflowers that sprouted naturally in your garden. The birch trees are slower growers than the sunflowers that had sprouted, but by the fifth summer they start to shade the sunflowers. The birch trees and the sunflowers are in competition for:
A)water.
B)light.
C)nutrients.
D)All of these choices are correct.

Question

Quizplus · Accepted Answer

The competition between the birch trees and the sunflowers includes all three factors of water, light, and nutrients. Both plants require these resources to survive and grow. As the birch trees grow taller, they shade the sunflowers and decrease the amount of sunlight available to them, making it harder for the sunflowers to thrive. Additionally, the roots of both plants are competing for water and nutrients in the soil. Therefore, all three choices are correct.

You Notice That Two Small Birch Trees Sprout and Begin