Answer:
According to Google, Nunavut has the lowest population density in Canada. This might occur because it's made up of islands and the area is a tundra so it's very cold and doesn't support agriculture. The islands are also accessible only by plane or boat so it's hard for people to move to the area.
Explanation:
.....................................................................
Answer:
Planting more trees can reduce carbon dioxide in the atomsphere and making new forests as well.
Explanation:
The trees will absorb the carbon dioxide for photosynthesis
(Sorry if this wasn't what the question meant)
