When two people are in a race, what do you need to know to determine who is the fastest? (Select all that apply.) 1. he height of the people
2. units of speed that are identical
3. the distance they ran
4. the time they took to run the race

Which is an example of a population?

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

Why are some places regularly warmer or cooler than others in a given month