What was formed when the Pacific and North American plates converged? Mount St. Helens
the Hawaiian islands
The Mid-Atlantic Ridge
the San Andreas fault

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

Draw the lewis dot structure for each of the following polyatomic ions

How does the atmosphere to make earth livable? check all that apply. causes the seasons contains oxygen provides warmth creates important nutrients blocks harmful energy from the sun plz like !