Natural Cycles: Oxygen and Carbon Cycle

The video explains the essential role of oxygen for animals and how plants replenish it. It describes the process of photosynthesis, where plants take in carbon dioxide and release oxygen. The video also covers how animals obtain energy from carbohydrates, producing carbon dioxide as a byproduct, which plants then use, completing the cycle.

What do all animals need from the air?

What gas do plants breathe in?

How do plants produce oxygen?

What is the relationship between oxygen and carbon dioxide in the cycle?

Why can't animals produce their own energy?