The introduction of chemical, physical, and/or biological agents into water that degrade the water quality is known as geo-pollution.

a. true

b. false

A chemical substance composed of atoms of two or more distinct elements chemically bonded to one another is called a

The transfer of thermal energy between two bodies at different temperatures is known as

Four people are needed to lift a TV set with a single fixed pulley. How many people will be needed to lift the same TV set with a 2 fixed, 2 moveable pulley system? (Ignore friction.)

A single-element cation and a single-element anion create what type of ionic compound

Does changing the mass or volume of water change its density

The currents of the Earth's oceans are caused by A. marine organisms and volcanic eruptions. B. disturbances by submarines and large ships. C. waves and earthquakes along tectonic plate boundaries. D.

You are on an alien planet where the names for substances and the units of measures are very unfamiliar. Nonetheless, you obtain 19 quibs of substance called skvarnick.

How do you know if an element is an ion?

Which gas is not a greenhouse gas, A methane, B Water Vapor, C, Carbon dioxide, D, Nitrogen, E, Ozone

A very small equilibrium constant means ... a. an equal amount of reactants and products c. more products b. more reactants d. system isn't at equilibrium