True.
In the upper layers of the atmosphere, it blocks UV radiation from the sun; however, in the lower layers, it is a pollutant.
It does not include plant sources.
three domains , archae- 1st appeared, prokaria- not closed by nucleus and eukaria closed by nucleus
If im not wrong its because they looked like clowns
Answer:
the younger rock is on the top because that is where the newer rocks form the older rock is on the bottom
Explanation:
