Traditionally the unit was the kilo-calorie but commonly just referred to as calorie. today's SI unit is the Joule...
Answer: By keeping plastic from being dumped in to the water, especially water in witch animals inhabit. also by using reusable cups instead of plastic bottles.
Explanation: Hope this helps!
1.A control group is important to an experiment because it allows you to eliminate and isolate those variables.
2. Controlling variables is important because slight variations to the experiment set up could affect the outcome significantly
Hope this helps :)
I believe that would be estrogen.
The forces beneath the earths crust that makes volcano's erupt is Magma and the rocks around it, which both make its way up to a volcano by going through the cracks of the Earth's crust, when making their way up they release pressure that causes a volcano to erupt.