Which of the following is different between polar and nonpolar molecules?
The presence of charges on the atoms
The presence of covalent bonds
The number of atoms in the molecule
The number of electrons shared
Please answer fast

How had the study of mitosis affected scientists knowledge of cancer

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

Which is the graph of the piecewise function f(x)? f(x) = image for option 1 image for option 2 image for option 3 image for option 4