Earth has experienced 5 large ice ages. During these frigid times, hefty layers of ice smothered the planet with temperatures 10°C lower than it is today.
— Read on earthhow.com/ice-ages-glaciations-geologic-history/
Ontario Association of Geographic and Environmental Educators
Teacher organization supporting Geographic Education, Ontario, Canada
Earth has experienced 5 large ice ages. During these frigid times, hefty layers of ice smothered the planet with temperatures 10°C lower than it is today.
— Read on earthhow.com/ice-ages-glaciations-geologic-history/