Anyone wanna play a guessing game? (This is how it works: The people have a short conversation about anything, after the conversation they start guessing your eye color or favorite color or favorite music artist)

Earth's atmosphere is unique among the planets and is able to support life because it contains a large amount of a) oxygen b) helium c) methane d) carbon dioxide

To safely control the traffic flow and protect workers near public roadways and moving construction equipment use you could use

Which of the following ideas did greek philosopher democritus contribute to the atomic theory? a. each object is made up of one atom, which varies in size from very small to very large. b. matter is composed of only one kind of particle, which can be easily destroyed. c. every element has a specific type of atom, which remains the same size in all forms of matter. d. all matter is composed of small particles, which combine to make larger objects.