Living things need air to live

Air is mixture of many gases. One of them is oxygen. Oxygen is required to breathe for all living things. All living things breathe in various ways. Human beings and animals breathe through the nose.

Antonyms

Benefit - Loss
Cold -  Hot
Guest - Host
Bold-  Timid
Busy- idle
Sharp - Blunt
Agree - Disagree
Close -  open
Difficult - Easy
Full - Empty
ENJOY - SUFFER
CONTINUE - DISCONTINUE

Sense organs

There are five sense organs in our body. These are eyes, ears, nose, skin and tongue. These sense organs help us to sense the things around us. These are organs of sight, hearing, smell, touch and taste.