the answer is chemical reaction
Answer:
1. Thin Humus layer, minerals deep beneath the surface
2.Solar energy
Explanation:
I just took the test and got it right.
Answer: He didn’t grow a plant without fertilizer.
Explanation: Manu has nothing to compare his plant to. Meaning, he cannot prove that fertilizers help plants grow. He needs to grow a plant with and without fertilizer.
Stable elements are those which have atleast one isotope with no tendency to "decay", i.e., change into anotherelement.
<span>A mineral that contains a useful substance or element, such as iron or aluminum, is an ore. Like gold or silver. Hope this helps!!!!! Please mark brainiest. </span>
