Imagine that you’re a city planner, and you are interested in to build more parks for your citizens. you have two things to you:

1. A map to plan parks in good places.
2. A team, which can help you.

Air pollution: “combustion results in gases such as nitrogen oxides, nitrogen dioxide and particulates. the main causes of air pollution include transport, domestic combustion and industrial processes. pollutants from these sources can cause problems in the immediate vicinity and a distance away.”

Earths place in space