Answer:
because of their daily growing population each country you mentioned is affected by population growth
Answer:
B. He learned in the hopes of improving his life as a slave,if not total escape from slavery.
Answer:
Greenhouse affect - atmosphere traps heat
Ice age - coldest phase of climate cycle
Sun's output - can vary
Greenhouse gases - atmosphere traps even more heat
The coolest layer is the crust. The crust is on the surface of the earth (where we are) . Inner Core
The sting ray is a carnivorous animal