1
= 1
{scope}
\b[Original question.]
In what relation do the chemical elements stand to the other kinds of matter on the earth's surface ? Why are air and water, respectively, no longer regarded as elements ?
= 1
{scope}
\b[Original question.]
In what relation do the chemical elements stand to the other kinds of matter on the earth's surface ? Why are air and water, respectively, no longer regarded as elements ?