In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

Example Input: Question: A particle that is in the desert is likely _____ compared to one in the arctic.
Answer: faster
Example Output: At higher temperatures, particles of reactants have more energy, so they move faster. They are more likely to bump into one another and to collide with greater force.

Example Input: Question: Henry noticed that his piece of cake was lighter than his piece of butter. The cake was _____ dense.
Answer: less
Example Output: A given volume of a denser substance is heavier than the same volume of a less dense substance.

Example Input: Question: Ivan and Rita weighed themselves. Ivan weighs less than Rita. Who has a larger gravitational pull?
Answer: Rita
Example Output:
The greater the mass of the objects, the stronger the gravitational pull between them.