Sustainability means developing practices which protect the environment while also providing for human needs. which of the following changes would be most in achieving sustainable agriculture? a)clearing land for agriculture by cutting down trees instead of burning them b)rotating crops to replenish the soil with nutrients c)tilling the ground to remove weeds and create uniform crops d)growing crops that produce only renewable resources

The correct answer is (D)Growing crops that produce only renewable resources

The by products  of the crops such as corn stovers is used to produce energy without harming the soil quality or increasing the rate of soil erosion. The crops like sunflower, canola can produce bio-oil and bio-fuel which is a renewable fuel. This type of plants should be grown so that renewable resources can be produced. This means that this practice is sustainable as it is protecting the environment and also providing resources for human needs.

i think that d. wind is the answer.   i missed the question when i answered a. currents.

thinking it would be physical characteristics