Which greenhouse gas is the most abundant in our atmosphere ? * A. Oxygen B. Carbon Dioxide C. Nitrous D. Oxide Methane

Carbon Dioxide (CO2)

Explanation:

It create this climate change so yea

B. Carbon Dioxide

Explanation:

Carbon dioxide is the most abundant additive greenhouse gas contributing to global warming. It is the fourth most abundant component of dry air and levels in our atmosphere have thus risen about 40% since the onset of human industrialization, and are expected to play a troubling role in raising global temperature. Atmospheric carbon dioxide concentrations have varied substantially in the pre-human history of our planet, and have had profound impacts on global temperatures in the past.

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation:

to force terrorists groups to stop attacking western targets using massive military force.