Video playlist
The Earth's early atmosphere. Video
Alisha Kakar explains which gases scientists think may have been present in Earth’s early atmosphere

How carbon dioxide decreased. Video
Alisha Kakar explains why the carbon dioxide in Earth’s atmosphere decreased millions of years ago.

Links
- External linkExternal link
- SubscriptionSubscription
- External linkExternal link
- External linkExternal link
- SubscriptionSubscription
- External linkExternal link
- External linkExternal link
- SubscriptionSubscription