Define light yearend explain how and why light years are used to measure distances in the universe

Which atom is most likely to accept electrons to form an ionic bond? a. a mercury ion with a negative 2 charge b. a potassium ion with a negative 1 charge c. radon, a noble gas with 8 valence electrons d. sulfur, a nonmetal with 6 valence electrons

Before electric current in power lines can be safe for your home, it must pass through a a. turbine. b. step-down transformer. c. step-up transformer. d. generator.

State the law of conservation of mass

What is the difference between luxury and a necessity

Which happens during the day at the beach? A. The water is warmer than the land, and air sinks over the water B. The water is cooler than the land, and air sinks over the water C. The water is warmer than the land, and air rises over the water D.

What is the conversion of celcius to kelvin?

Why does the percentage of water vapor vary?

A situation that restricts something

Why is the sky blue all the time

Where did the rotational kinetic energy of the earth come from?