Meaning: Oxygen is necessary for the body to produce energy.
Choice of Words: Fuel is something that provides energy.
Alternative Expressions
Oxygen keeps the body going.
Meaning: This sentence means that oxygen is essential for the body to function and stay alive. Without oxygen, the body would stop working and die.
Choice of Words: The word "oxygen" refers to the gas that humans and other living things need to breathe. "Keeps" means to continue or maintain something. "Body" refers to the physical structure of a human or animal. "Going" means to move or function.
Oxygen is like food for the body.
Meaning: This sentence means that oxygen is as important to the body as food is. Just like we need food to survive, we also need oxygen to survive.
Choice of Words: The word "oxygen" refers to the gas that humans and other living things need to breathe. "Food" refers to the substance that provides nourishment to living things. "Like" means similar or comparable.
Oxygen makes the body work.
Meaning: This sentence means that oxygen is essential for the body to function properly. Without oxygen, the body would not be able to work and would eventually die.
Choice of Words: The word "oxygen" refers to the gas that humans and other living things need to breathe. "Makes" means to cause something to happen or exist. "Work" means to function or operate.