I need points sorry not sorry
Ice was produced using radiation effect by setting out shallow terra cotta rays with just small amount of water. At night when the temperatures were cool while humidity is low the water used to freeze in the morning.the ice formed was collected and stored in caverns
Hope this helps you. but for this sort of stuff I suggest you look on the internet first
Simple, we weren't around during that time, so we made theories and conclusions to when life evolved on earth.