9) what is the agricultural practice that focuses on the economic viability of crops and the use of non-renewable resources effectively?

The agricultural practice that focuses on the economic viability of crops and the use of non-renewable sources effectively is sustainable agriculture

Explanation:

Sustainable agriculture involves the production of long term animals and plants without causing environmental pollution.

In this practice, the use of excessive chemicals and fertilizers is minimized.

Instead, there is an embrace of the use of non-chemical means of agricultural production.

Like the use of crop rotation to avoid pests.