Iwill give brainiest + (6 points)

a farmer uses weeks and stalks from his pervious year's crop to plow his field. which of the following soil conservation techniques is he employing?

a. terracing
b. recycling
c. conservation plowing
d. crop rotation

C. conservation plowing

Explanation:

Terracing is creating steps or terraces on ones framland. Crop rotation is the change of crops, often seasonally, in a certain location. Recycling, while technically matching the question, is not the answer, as the process of using dead stalks from the previous year's crop in the soil is called conservation plowing.

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles