Which of the following is an example of a long-term climatic change?
a. la niña
b. summer
c. ice age
d. winter

Ice age following is an example of a long-term climatic change. Because ice age happens every 300-400 million years when the earth tries to revive back its natural state form. Blizzard happens during a snowstorm and also lasts in days to months. Summer and winter are types of seasons occurring for a few months.

c. Ice age

Explanation:

An ice age is a long period in the history of the earth that causes a reduction in the global temperatures of the surface of the earth that results in the expansion of landmasses and polar ice sheets and valley glaciers. It marks the longest climatic change response from the earth. Usually associated with the greenhouse periods. As the current earth is in a quaternary period where there are no glaciers on the planet that were prevalent for 50,000 years due to the glacial cycles of glacial and the interglacial periods. Thus these glacial period marks the rotational motion of the plates and the upliftment of the landmasses.

Here is a picture  of the net. its 4 squares in a row diagonal and on the third draw one square aove and under