Only 30% of freshwater is easily accessible by humans. Where can this freshwater be found?

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

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.

Which of the following are correct values for the ideal gas laws constant r