Answer:
C3H8O= C3 + H8 + O
Explanation:
You do not need to write the one for oxygen, yo can if desired
Answer:
I'm sorry but what exactly is your question?
Metamorphic are formed through change underground sedimentary are formed through sediment
Answer:
I think the answer is B, Rivers. Mountain ranges don't really help the environment much as can mostly only change the climate.
The variable that researchers manipulate is the independent variable.
The reason for this is because in experiments different manipulations are often introduced. The sole purpose of these manipulations is to see whether they will affect our independent variable and if they will change its value.