Oxygen is needed to stay alive. Without it you suffocate.
natural gas
plants need oxygen to stay alive and carbon dioxide for photosynthesis
oxygen
Oxygen.
Oxygen
Oxygen is the gas humans and animals need to breathe in.
They need to stay alive to support the organism
Because new gas is produced as a part of a cycle.
water,gas,food,and waste disposposol
To stay alive, flowers need sun, water, soil, and nutrients.and oxgan
The four thing you need to stay alive are: Oxygen, water, Food, and Air
The gas you need to stay alive is Oxygen, you need oxygen to carry vital functions of body, when you inhale oxygen, its goes directly into the lungs and through alveolis, which are present in lungs oxygen get absorbed into blood which is then taken to heart and heart pumps the blood to each and every part and organ of the body, so like this your body works.