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: Tina cools some oxygen gas. The oxygen particles will move 
 Answer: slower
If the gas is heated, the particles will move faster as they gain more energy.

Question: Compared to the Sun, would the planet Earth have 
 Answer: less inertia?
Objects with greater mass have greater inertia.

Question: Sarah is looking at layers of rock on a cliff face. She can see that the rock at the very bottom of the cliff are 
 Answer: older

The upper rock layers are much younger.