Which of the following will occur as the speed of the molecules in a substance increases? a) The substance will become cooler.
b) The substance will begin to take up less space.
c) The force of attraction between the molecules will decrease.
d) The force of attraction that draws objects to Earth will increase.

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility

Which of the following warnings would an agricultural chemist tell a farmer who wants to recycle his or her own ammonia? recycling ammonia is a difficult process that sometimes takes weeks. recycling ammonia requires a degree in biochemistry or a related field. recycling ammonia can be harmful because it is highly flammable and toxic. recycling ammonia costs too much money considering the price of the necessary chemicals.