Why are streak plates used to test minerals? A. They show you the color of the impurities in the mineral O B. They show you the silicon content of the mineral. O C. They show you the true color of the mineral.

What statistics are to determine the development of a nation?

In which type of economy do the forces of supply and demand typically drive prices? a. a market economy b. a traditional economy a planned economy d. a command economy select the best answer from the choices provided. 0 0 em oo 0 0

How many time zone are there on earth