Answer:
chemical reactions change reactant and produce new substance called products.
Explanation:
chemical reaction is a change which will produce a new substance. ( while physical reaction does not produce a new substance.
The world has the least amount of oil as for fuel. All oil traps contains an impermeable layer but a permeable rock that contains hydrocarbon fluids and gases is called a(n) oil reservoir. Whereas syncline is least likely to contain an oil trap. In U.S oil production is less than oil consumption.
D oxygen there was no free oxygen on the earth
I’m not sure but I think it’s A or C
Answer: Vacuole
Answer choices:
<span>Cell membrane
Mitochondrion
Nucleus
Vacuole</span>
Vacuoles<span> are membrane-bound structures found in both animal and plant cells. </span>
They have three important functions in plants -- provide support or rigidity, a storage for nutrients and waste matter until it can be removed, and decompose complex molecules.
