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.