Read the passage below and choose the right answer to the following question (choices are high or low ): At higher concentrations, particles of reactants are crowded closer together, so they are more likely to collide and react. Mike is watching how particles of reactants function, and sees that they are crowded very close. Considering that the concentration of them is very high, the chance of them colliding together is high or low?
high

Read the passage below and choose the right answer to the following question (choices are increases or decreases ): A: The more carbon atoms there are, the greater the number of possible arrangements of carbon atoms. Eric removed carbon atoms to the solution. The number of possible arrangements of carbon atoms increases or decreases?
decreases

Read the passage below and choose the right answer to the following question (choices are close or distant ): The more similar the DNA molecules of different species are, the closer the relationship is likely to be. Two species with near similar DNA should have a close or distant relationship?
close