Choose one rock from each of the three categories- sedimentary, igneous, or metamorphic and describe in a complete paragraph (60 + words) the color, luster, streak, hardness, and cleavage of the three rocks you chose. You will write three complete paragraphs, one for each of the rocks you chose to describe. You can also include information about how the rocks are used or where they are commonly found to enhance your writing.

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

When a septic tank backs up a goes in to clean it out

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.