3 years ago

When was the Ice Age and what has changed about the composition of greenhouse gases? Include cities for your answers.

Geography

1 answer:

NNADVOKAT [17]3 years ago

5 0

Answer:

it is said that the Ice Ages began 2.4 million years ago and ended approximately 11,500 years ago.

Explanation:

During this time Carbon-Dioxide (a poisonous and warming gas) levels rose dramatically by about 180 ppm to 280 ppm.

This caused the major retreat of glaciers that ran across continents...

There were other gases but they were in VERY small amounts...

(APART FROM OXYGEN)

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