How do human activities impact the environment in canada ?

Human activity does not affect the impact of the enviroment because the amount of water vapour in the atmosphere to any significant degree. As air warms, however, it can hold more water vapour. Of course, there is a limit to the amount of water vapour that the atmosphere can hold. When the air becomes saturated, clouds form and the water vapour returns to the earth as rain.

It can hold more water vapour. Of course, there is a limit to the amount of water vapour that the atmosphere can hold. When the air becomes saturated, clouds form and the water vapour returns to the earth as rain.

Magma is outside the volcano  and lava is inside the volcano.