In a large city, a scientist noticed that there were very few trees, plants, or shrubs. She also noticed that there was a high amount of respiratory problems in the city. After meeting with multiple city planners and council members, the scientist asked for a grant to plant trees, plants, and shrubs around the city.

The lack of trees and shrubs leads to desertification and air pollution.

Explanation:

The shrubs, trees and other plants produce oxygen and that is essential for life on earth, without clear and clean atmosphere there will be respiratory problems and other diseases. In order to reduce and eliminate the effects of diseases the city needs to develop green belts and shelter belts that stop the dust and purifies the air around the city.