The circumference of the earth (the distance around the Earth) is about 40,000 km.
2 answers:
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Answer:
The 'Mole'
Explanation:
In the International Systems of Units i.e. SI, mole is the unit for the measurement of the amount of substances, or in simple terms the number of microscopic molecules or particles in a given sample is measured in mole. It is denoted by the symbol 'mol'.
If in a given sample there are 1 mole particles or molecule then it means that the total number of particles or molecules in that sample is equal to the Avogadro's number and this number has a value of . Mole is used as a measurement unit for various types of microscopic particles like atoms, molecules, ions electrons.