With the sun's final habitable zone dangerously close to the star, what will a dwarf planet like Ceres need to balance?
a. being far enough from Pluto to avoid collision while
keeping behind it to avoid the sun's rays
b. being far enough from the sun to maintain its own gravity
while not getting too cold
c. being close enough to take in the sun's heat without
being sucked in by its gravity
b. being large enough to maintain organisms without
creating dangerous bacteria

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.

Types of scientific inquiry that biologist engage in that cannot be completely controlled

Which description provides the best objective summary of the article in the passage?