Which of the following best explains why soil conservation is important to human agriculture

It is easier to prevent the degradation of old soil than it is to generate new soil.

The bare soil surface type affects the amount of runoff because it has no other stopping mechanism that prevents runoff to happen. Just like in the use of pesticide, it is harmful to human agriculture because it contains an antifreezing chemical (present in transportation vehicles). When the chemical seeps into the soil, it will create a runoff and can seep into the groundwater causing pollution.