Question

Some scientists theorize that climate changes can be caused by _____.

1. an increase in Earth’s interior heat

2. variations in the color of light coming from the sun

3. a change in the angle of the Earth’s axis

4. a change in the chemical composition of the oceans

Answer 1

I think its 1.
Because the green house gases from earth are melting the layer that protects the earth from the sun. This causes global warming