Answer:
A vaccum should be used for the control group chamber.
Explanation:
In an experiment, a control is an experiment or observation designed to minimize the effects of variables other than the independent variable. The introduction of a control increases the reliability of the results; often through a comparison between the control measurements and the other measurements.
A vaccum according to this experiment is a chamber that will have no pressure within it. This will give a benchmark of the effect of pressure in this experiment.
In 2008 we started to recycle more often and produced less waste. This is mainly due to the fact that global warming was starting to spread to the public.
Mutualism
Explanation: a relationship between two species of organisms in which both benefit from the association.
The greatest cause of the worldwide loss of species is human activity. I think
