I am in the air, invisible, and your body needs me every moment. What am I? - Answer & Hint

I am in the air, invisible, and your body needs me every moment. What am I?

Need a hint?

One helpful clue

Show hint

Hint: You breathe me in.

Reveal answer

The answer is

Oxygen

Answer guide

Why this answer works

Read the explanation

Oxygen is an invisible gas in air that the body uses in respiration.

Keep guessing

🤔

What bell can wake you up but has no metal?

Reveal answer

The answer is

A phone alarm.

🤔

What button makes things stop instead of start?

Reveal answer

The answer is

A pause button.

🤔

What key can lock you out if you forget it?

Reveal answer

The answer is

A password.