Which statement is true? A. sound waves and light waves travel at the same speed
B. sound waves and light waves do not travel
C. sound waves travel faster than light waves
D. sound waves travel slower than light waves

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

What are the advantages of using the metric system? designed as a decimal system making conversions simpler more accurate system of measurement has prefixes that correspond to an amount to use with all base units used by the entire scientific community

Why is it incorrect to balance a chemical equation by changing the subscripts? explain.