Answer:
Forests have an abundance of trees, which provides oxygen for us to breathe, while also collecting the carbon dioxide in the air. It is also home to many species of animals, such as squirrels. This is why it is important to protect the forest ecosystem.
Explanation:
C, a little depressed. Brooding is close to showing deep unhappiness of thought.
Answer:
World Health Organization
The Democratic party, because the disapproved of slavery
