Oxygen. I got this answer because the process of Oxidation is when oxygen bonds with an element. Such as Iron Oxide, which is rust. So oxygen does, infact, have more of a role in chemical weathering.
Answer:
Sperm and egg have 23 the number of chromosomes as a body cell.
Hope this helps =)
Answer:
Gravitropism
Explanation:
Plants can respond to gravity, water, touch, and light in their environment. Plant parts can grow with or against gravity. This type of tropism is called gravitropism. Roots of a plant grow downward and exhibit positive gravitropism.