It varied a lot but it became very cold and the Earth became covered with ice.
it is cooler {apex}
it is cooler {apex}
it is cooler {apex}
in the precambrain time
The climate of the Cenozoic era was generally cooler and more variable compared to the relatively warm and stable climate of the Mesozoic era. The Cenozoic era experienced significant fluctuations in temperature, including periods of glaciation, whereas the Mesozoic era was characterized by a more uniform greenhouse climate.
dry
Paleozoic
During the Precambrian Era, life forms were predominantly single-celled organisms such as bacteria and algae. These organisms were simple and lacked the complex structures seen in later eras. It was a time of significant evolution and diversification of life on Earth.
hot
cheese
it is cooler {apex}
it is cooler {apex}