dark matter may explain
a. unexpected orbital velocities of stars in galaxies
b. the source of energy that fuels stars
c. the expansion of the universe
d. the origin of life
e. what came before the big bang

and dont you dare say e.

Dark matter may explain unexpected orbital velocities of stars in galaxies.

Iread this book last year so take this with a grain of salt.gene jumps from the tree to compete with finny due to the fact that gene is always trying to do better than finny. he is put under the grasp of peer pressure due to finny almost forcing him to do this. ever since he first jumped finny kept pressuring him to jump since he thought gene enjoyed jumping.rather than uses this answer you should probably just reread chapters 3-4

B) raising the temperature and reducing the volume of the gas.|-/