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.
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Question: Question: Gerald laid down many rock layers. The layers on the bottom level were likely laid 
 Answer: first

Answer: Lower rock layers were laid down earlier, so they are assumed to contain older fossils.


Question: Question: John was observing a circuit breaker in operation to see if it would pop. He noticed that as the current increases, the electromagnet becomes 
 Answer: Stronger

Answer: If the current passing through the circuit breaker increases, the electromagnet becomes stronger.


Question: Question: Which planet has the least gravity exerted on it from the Sun? 
 Answer: Mars

Answer:
Objects that are closer together have a stronger force of gravity.