<span>Crust, mantle and core (core has 2 layers) </span>
No beacuse the other layer may be to cold or hot for humans to survive in
B, C, D
A is r-selected species
The answer is 4 chemical energy from the grass.
HAPPY NEW YEAR!
Answer:
The answer is either that he is a scientist or a chemist, but I think I’d go with scientist.
Hope this helps!