Answer: population
Explanation:
because they are the same it cant be commuintiy
-Water evaporates and condenses into clouds, then the clouds are blown over the ocean, and it rains.
-Water from a mountain flows down and into a river. The river empties into an ocean.
I think the right answer is b
Answer:
The control variable is the soldier.
Explanation:
The same soldier is used throughout the test