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Which of the following is not matter?
a)Blood 
b)Humidity
c)Electron
d)Moon rock
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Which of the following is not matter?a)Bloodb)Humidityc)Electrond)Moon...
Humidity is the amount of water vapour present in the atmosphere. Thus, as water vapour is gaseous and gases are matter, humidity is due to matter. Humidity is not a matter, as humidity is the phenomenon of being humid.
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Community Answer
Which of the following is not matter?a)Bloodb)Humidityc)Electrond)Moon...
Not matter: Explanation

Introduction:
Matter is anything that has mass and takes up space. It is composed of atoms and molecules. However, there are some things that do not fall under the category of matter.

Non-Matter:
One of the following options is not matter:
- Blood: Blood is matter because it is composed of cells, plasma, and other substances that have mass and take up space.
- Humidity: Humidity is not matter because it is a measure of the amount of water vapor in the air. Water vapor is matter, but humidity is just a measurement.
- Electron: Electrons are matter because they are subatomic particles that have mass and take up space.
- Moon rock: Moon rock is matter because it is composed of minerals and other substances that have mass and take up space.

Conclusion:
Therefore, the correct answer is option B, humidity, as it is not matter.
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