28) what process is responsible for the movement of the earth's plates?

A) volcanoes

B) unequal heating of the mantle

C) the sun's energy

D) melting and freezing of the surface

How is the atomic number, mass number and charge of an atom found if you are given the number of protons, neutrons and electrons?

State the colour of a solution of copper sulphate

Deoxyribonucleotides are so named because they lack a hydroxyl at which position?

a mixture of oxygen, nitrogen and hydrogen gases exerts a total pressure of 85 kpa at 0 degrees Celsius. The partial pressure of the oxygen is 20 kpa and the partial pressure of the nitrogen is 50 kpa.

In an exothermic reaction, energy may be released to the surroundings in the form of

How have humans negatively impacted biodiversity?

Michael mixes two chemicals together in a beaker. The chemicals change color, and the beaker heats up quickly. What kind of change most likely occurred? A chemical change occurred. Only a physical change occurred. A mixture formed.

What type of wave contains compression and rarefaction

What is the science of stratigraphy

The deviation from ideal behavior of a gas is most evident at [x] and/or low temperature. The van der Waals equation corrects the ideal gas law for the finite volume and [y] of gas molecules. True / False.