Altitude I think not really sure.....But i beleive so
one of the parents (or both of them) could be a carrier for the allele of light brown skin if the brown skin is the dominant gene. so if both of the parents are carriers of the gene for the light brown skin, then theres a small chance that their child could have light brown skin
The answer is organisms, oxidation & water. Organisms such as plants have their roots penetrate the cracks in the rocks. As the roots grow and become bigger they put mechanical pressure on the rocks and the cracks increase in size and the rocks are split. Additionally, organisms secrete organic acids, as wastes, that chemically react with minerals in the rocks hence causing weathering.
Oxidation is a chemical reaction that changes the property of minerals by makes them prone to weathering. An example is the oxidation of iron in the rocks to iron III oxide which is brittle.
Water participates in chemical reaction by dissolving minerals, such as limestone (CaCO3) from the rock hence leaving the rock porous and more predisposed to physical weathering agents.
Answer:
Single displacement (Substitution)
Explanation:
