How did the ice age come if the earth was hit by a ball of fire?
The Earth has been around for 4.5 billion years, and there have been multiple ice ages and countless “balls of fire” – which I assume you mean is a meteorite strike. The most obvious ice age and the most obvious “ball of fire” that you refer to must be the Pleistocene ice age and the K-T meteor impact, respectively. The Pleistocene ice age peaked at about 100,000 years ago (some people would argue we are still in it), and the end of the Cretaceous era occurred 65 million years ago. Based on the time difference alone, there is no relationship between the proposed K-T impact and the most recent ice age. Meteorites strike the Earth on a purely random basis, although the frequency of meteorites actually striking the Earth has decreased over the last half billion years or so because the atmosphere now shields us from smaller objects. Ice ages are controlled by a complex cycle of interaction between variations in solar thermal output, a slight wobble of the Earth’s dihedral angle, and variat
