Oxygen, it takes in Carbon Dioxide and releases Oxygen as a waste :)
Answer:
The growing population demands more food and more land for their needs. As it increases, more land is used for building houses and factories.
Explanation:
I would say it's A because it sounds like the most important one.
Its IV. forests are habitat for two-thirds of terrestrials species....................
The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.
Hope this help
