Air becomes wind as it flows from

a. low pressure to low pressure.

c. low pressure to high pressure.

b. high pressure to high pressure.

d. high pressure to low pressure.

How many grams of water are produced from 4.2 grams of methane?

Describe the relationship between the radius of a cation and that of the atom from which it is formed.

A ray of red light traveling through air strikes a block of quartz at an angle of incidence of 40°. If that light travels through the quartz and then enters a large crystal of sodium chloride (salt), what is the angle of refraction of the light in

Why is Pluto no longer considered a planet?

True or false Rocks can change shape and composition over time.

Ian walks 2 km to his best friend's house, then walks 0.5 km to the library. He then makes a 2.5 km walk home. The entire walk took him 3 hours. What is his average speed in km/h? SHOW YOUR WORK!

What would happen if earth gravity suddenly disappeared?

How many layers of material were the roads made of? a. two c. four b. three d. five

Red light has a shorter wavelength than yellow light.

Approximately what is the parallax angle of a star that is 20 light-years away?