Answer:
Using a control group means that any change in the dependent variable can be attributed to the independent variable.
Explanation:
They were loosing their lands that's why we can choose a) weak leadership
Answer:
the answer is this will cause the suns rays to go through the earths atmosphere and heat up the planet causing it to become hotter.
Explanation:
we are causing this by our factory's and cars pollution.Causes : chlorofluorocarbon (CFCs), halons, and other compounds deplete the ozone layer.
This is False. Eastern Russia is considered part of North Asia.
