What is the luminous intensity of 0.50

True or false? if false change the answer.1)percentage composition is the mass of each element in a compound to the entire mass of the compound multiplied by 1002)avogadro's number is the sum of all the atomic masses in a compound.3)1 mole of sodium chloride is equivalent to [tex]6.02x {10}^{23} [/tex]atoms. ​

What exactly is meant by the microbiome?

Sentences about plants clean and green​