Needs of Living Things: Need for Air

The video explains the importance of breathing for survival, highlighting how animals, including birds, mammals, and fish, require oxygen from the air or water. It also covers how plants take in carbon dioxide, which is essential for their growth and survival.

Why do many living organisms need to take in air?

• To stay hydrated

• To survive

• To change color

• To grow faster

Which gas is essential for birds and mammals?

• Nitrogen

• Hydrogen

• Carbon Dioxide

• Oxygen

How do fish obtain oxygen?

• Through their skin

• Through their fins

• Through their gills

• Through their scales

What gas do plants primarily take in from the air?

• Nitrogen

• Carbon Dioxide

• Oxygen

• Helium

What do animals exhale that plants use?

• Methane

• Oxygen

• Carbon Dioxide

• Nitrogen