Which is an effect of global warming?

Question

A. increasing carbon dioxide in the atmosphere

B. increasing greenhouse gas concentration in air

C. rising sea level over a period of time

D. changing seasons every year

Answer 1

All of the options listed are effects of global warming.

Answer 2

I think increasing CO2 is a cause not an effect, same for other greenhouse gases.
I think winter has always changed to spring

Therefore I would pick:

C, rising sea level

Answer 3

Apologies for the confusion. You are correct, increasing carbon dioxide and other greenhouse gases are causes of global warming. The effect of global warming would be rising sea levels over time. Changing seasons every year is a natural occurrence and not directly attributed to global warming. Therefore, option C, rising sea level over a period of time, is the correct answer.