Answer:
Soil health is fundamental for a healthy food production. It provides essential nutrients, water, oxygen and support to the roots, all elements that favor the growth and development of plants for food production
Explanation:
The correct answer to this question is this one: they lacked oxygen. The earliest organisms were completely heterotrophic in nature because of the reason that they lacked oxygen. <span>A heterotroph is an organism that cannot fix carbon and uses organic carbon for growth. </span>
Answer:
Oil can be burned to heat water, using the steam to generate power. Or, oil can be burned under pressure to produce exhaust gasses.