D.<span> layers of porous rock or sand
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Carbon dioxide and water 6CO2 + 6H2O
Cells have all different shapes and sizes. Their fuction makes them flat, depending on the fuction they flatter they are.
Answer:
the answer is Z
Explanation:
The reason being is because the definition of potential energy is the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors. So the highest point of energy is when the coaster is at point X.
Hope this helps.