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.

Question: When an item is lighter and is gliding across something it will have
Answer: less friction
Heavier objects press together with greater force, and this causes greater friction between them.

Question: David turns down the temperature in the cabin, so energy of sound waves is moving
Answer: slower
At a lower temperature, particles of the medium are moving more slowly, so it takes them longer to transfer the energy of the sound waves.

Question: If the people in Mary's country start to create more greenhouse gases, what will happen to the possibility that changes may occur?
Answer: increase
As greenhouse gases increase, changes will be more extreme.