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)
They give us different types of information, like the location, the climate, and what type of species live there. Also I think there are some that are better than others. I think this because, the types of animals and climate depend on how a animal can survive and how hot or cold it is.
Geography
Population
Demographics