Answer:
Throughout Earth's history, scientists have identified five major ice ages: the Huronian (2.4-2.1 billion years ago), Cryogenian (850-635 million years ago), Andean-Saharan (460-430 mya), Karoo (360-260 mya), and Quaternary (360-260 mya) (2.6 mya-present).
Explanation: