The various components of a mixture or do not combine chemically true false

Light waves can move through , but they travel fastest when they move through a(n) .

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?

Salt in oceans comes from and of rocks