Seismic waves do not travel along the earth’s surface true or false

Hydrogen is the most abundant element on the periodic table..hope it .

6because i no yea yea

C) the increase in atmospheric pressure pushes the walls of the balloon outward thus making it  is the answer.hope i you.

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).