Answer:
C is the correct answer
Explanation:
to test for the presence of carbonate minerals in a rock
Answer:
The diagram provided shows K2O, or potassium oxide.
Explanation:
Ok... so, there are two "K2O" options, so I would just choose either and hope for the best. I don't know, maybe it's a mistake...
Tertiary consumers are usually big predators which
1) have a tendency to claim large territories for themselves
2) need more energy and thus eat more than primary consumers