Question

Human-created climate change is caused by(1 point)
Responses

increased carbon dioxide in the air.
increased carbon dioxide in the air.

increased oxygen in the air.
increased oxygen in the air.

decreased burning of fossil fuels.
decreased burning of fossil fuels.

increased use of green energy sources.
increased use of green energy sources.

Answer 1

Human-created climate change is caused by **increased carbon dioxide in the air**.