Alot of humans might not now they are even harming the systems by smoking or littering.
Answer:
i would pick the answer c
Explanation:
sexual reproduction is slower than asexual reproduction because in order to reproduce sexually, you would need to find a partner first. but reproducing asexually is quicker because you don't need a partner
Answer:
Rosalind's x-ray showed that the ladders of nucleotides were inside a double helix.
Watson and Crick built models with the ladders on the outside.
Your answer would be Physical weathering because it is being caused by a physical being acting upon something