Question

2.What has caused climate change?

Answer 1

Answer:

Green house effect and human activity.

Explanation:

-The green house effect: Some gases in the atmosphere trap the heat and doesn't allow it to scape making the Earth warmer.

-Human activity: The industrial activities have increased the carbon dioxic levels that have contributed to the higher temperatures. Also, deforestation, fluorinated gases and fertilisers containing nitrogen have contributed to climate change.