Temperature can cause substances to change from one stage to another. This type of change is called a A. Chemical reaction
B. phase change
C. metamorphosis
D. Substance alteration

Question so y'all can get points!
I accidentally put Geography instead of chemistry sorry

Which statement explains what upwelling causes? a. upwelling causes tides to rise and fall. b. upwelling causes changes in the direction of currents. c. upwelling causes nutrients, minerals, and tiny organisms to rise. d. upwelling causes currents in the pacific ocean to change direction. i think the answer is c.

If we represent the solar system on a scale that allows us to walk from the sun to pluto in a few minutes, then a) the planets are microscopic and the stars are millions of miles away. b) the planets are the size of basketballs and the nearest stars are a few miles away. c) the planets are marble size or smaller and the nearest stars are thousands of miles away.

In what three areas is the us leader?