Answer:
artificial made
Explanation:
because it is greated by man not God
Answer:
When molecular hydrogen (H2) and oxygen (O2) are combined and allowed to react together, energy is released and the molecules of hydrogen and oxygen can combine to form either water or hydrogen peroxide. In this oxidation, a molecule of hydrogen gas is ionized to two electrons and two protons
I pretty sure that it include both biotic and abiotic. But "C" is wrong. Now your answers are between "A,B and C"
The statement is true, the competitive exclusion principle states that two organisms cannot fill similar niches.