Question

Carbon is released into the atmosphere through

melting rocks deep in the Earth.

boiling water.

lightning.

burning of fossil fuels.

Answer 1

@dimensionx

Answer 2

Burning of fossil fuels.

Answer 3

Take a look at this though: it's a quick summary, easy to understand, but it's important that you get why burning fossil fuels is the answer :) http://wiki.answers.com/Q/How_does_burning_fossil_fuels_lead_to_an_increase_in_carbon_dioxide

Answer 4

Does that make sense? @Gabylovesyou

Answer 5

yes it does thank you!

Answer 6

no problem :D