Answer:
B. Is what the scientists manipulate in the experiment.
Explanation:
The Independent variable is not dependent, or doesn't rely, on another variable in the experiment. So, it would make the most sense that they would manipulate the Independent so that they can watch and see how the dependent variable reacts to the manipulation, or the change, in the independent variable.
Answer:
A
Explanation:
i guessed ona quiz and got it right.
<span>for instance when you are using the filtration method by using a jar and a liquid process
</span><span>
</span><span>Count the number of drops in the first 15 sec
</span>5 mins in 15 sec = # of drops <span>10 mins in 15 sec = # of drops </span>
Answer: Cycles of matter are called biogeochemical cycles, because they include both biotic and abiotic components and processes. Components that hold matter for short periods of time are called exchange pools, and components that hold matter for long periods of time are called reservoirs.
Explanation:
