Answer:
i think that it will be :
Explanation:
1-coal
2-hydroelectric power
3-oil
4-nuculear power
*2&3 i amn't sure about them*
The train traveled 100km (50x2) down and then 375km (75x5) up. So the train is 275km (375-100) up from where it started.
Crossing over? That involves the random exchange of chromosomes.
Answer:
a. pepsin
Explanation:
it has a 1 to 2 level which is acidic because anything lower than 7 is acidic
Answer:
yes it helps controll the fishes depth
Explanation:
