Photosynthesis and Its Effects

The video discusses the balance of oxygen and carbon dioxide in nature, highlighting how living creatures breathe in oxygen and release carbon dioxide, while plants do the opposite through photosynthesis. It explains the role of chlorophyll in converting sunlight into energy to produce food and release oxygen. The video also warns about the potential decrease in oxygen supply due to rapid deforestation. An activity is suggested to observe changes in leaves, emphasizing the importance of understanding these natural processes.

What do animals release when they breathe?

• Oxygen

• Carbon dioxide

• Hydrogen

• Nitrogen

What do plants absorb from the air to make their food?

• Hydrogen

• Nitrogen

• Carbon dioxide

• Oxygen

Which pigment in leaves is responsible for photosynthesis?

• Anthocyanin

• Chlorophyll

• Xanthophyll

• Carotene

What could happen if deforestation continues rapidly?

• Increase in carbon dioxide absorption

• Decrease in oxygen supply

• Increase in oxygen supply

• No change in oxygen supply

What might you observe if you leave a leaf sample in a bowl?

• The leaf dries out

• The leaf changes color

• Bubbles form on the leaf

• The leaf absorbs more water