Which of the following best describes Earth's tectonic plates?
^
They move away from each other at the equator.
®
They move because of convection currents in the mantle.
©
They collide at midocean ridges.
D.
They form at subduction zones. -

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

What are transitions between a liquid and gas called? identify which way they are transitioning

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0