B. thick atmosphere
You can also use quizlet to look up answers also, I'm in college and they have never failed me.
The role of mass extinction in evolution. At the most basic level, mass extinctions reduce diversity by killing off specific lineages, and with them, any descendant species they might have given rise to. ... But mass extinction can also play a creative role in evolution, stimulating the growth of other branches.
If you are friend smoke you are increased more likely to start smoking then a child of non smoker
1. Sun (heat on the water)
2. Body of water
3. Evaporation( the specks going up to the sky)
4. The cloud
5 rain cloud
6. Rainfall (becoming a runoff)-> sent back into the cycle
Ribosomes process proteins that the cells need just like the softball team process the information that the coach give them in order to win.