Question

collect information on any four cause of global warming and present them with pictures​

Answer 1

1.construction of big projects like highways.

2.production of chemicals and artificial medicines.

3.nuclear explosions.

4.cutting of trees.

Explanation:

1.construct of large scale projects pollutes the environment near it .

2.Production of chemicals and artificial medicines produces heat and harmful gases.

3.Nuclear tests causes highly radioactive wastes like. Chernobyl, Bhopal,Hiroshima etc.

4.trees are major sites producing oxygen. cutting of trees reduces oxygen levels.