A florescent light tube usually contains what?
A a vacuum
B oxygen
C. Mercury vapor
D. Light emitting diodes

Atelevision set that has been running for a while heats up even the air around it. which two laws of thermodynamics could be used to analyze this scenario

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

If we relied solely on the nonrenewable resources found in the u.s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal