Answer:
D. They used simple molecules from early times and put them in a simulation from that time and it made complex ones that we have now.
Answer:
The ozone layer in the stratosphere blocks out the sun's deadly ultraviolet rays. It acts as our planet's natural sunblock.
Answer:
Salt leaves the road and enters the environment by splash and spray from vehicles, transportation by wind, snow melt into the soil and as runoff to surface waters. Salt primarily causes dehydration which leads to foliage damage but also causes osmotic stress that harms root growth.
Answer: A. It conducts heat well.
Explanation:
Copper is a good conductor of heat. This means that if you heat one end of a piece of copper, the other end will quickly reach the same temperature.
