Celina has a water sample that's contaminated with salt and microorganisms. Which two methods could she use to purify the water?

Which of the following is a part of a wave? a. crest c. trough b. drift d. both a and c

To determine a waves' frequency, you must know the distance it travels. number of oscillations in a given period of time. distance between the crest and trough. height of the wave.

An example of a solution in which the solute is not a solid and the solvent is not a liquid.

What equal and opposite reaction do you see in a roller coaster

What type of rock converts into over rock types under different conditions

A 2.0-kilogram laboratory cart is sliding across a horizontal frictionless surface at a constant velocity of 4.0 meters per second east. What will be the cart's velocity after a 6.0-newton westward force acts on it for 2.

A boat floats with 25% of its volume under water. a. What is the boatâs density? b. If the boat was made from 500 kg of metal, what is the volume of the boat? (Assume the air in the boat has negligible mass and density) c.

Why does each mineral have their own property, different from every other mineral?

Earth's tallest mountain ranges are found at plate boundaries

Is a lung a living organism, why or why not?