In 1815, a catastrophic event indirectly resulted in very cold temperatures that caused crop failures and famine in North America
and Europe for two years. This catastrophic event was the
of Tambora.

A)volcano
B)tsunami
C)ice age
D)earthquake

A volcano.

Explanation:

I got the answer from Usatestprep

stratosphere: as the altitude increases, the air temperature increases. the stratosphere has a layer of ozone, called the ozone layer. this layer absorbs most of the ultraviolet radiation from sunlight. this results in the stratosphere being warmer.