You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

Q: Paragraph: Because these isotopes decay more slowly, they can be used to date much older specimens.
 Question: Ron is trying to figure out how old some isotopes are. The isotopes are decaying very slowly, so they are likely specimens that are 
 Choices: A)older 
B)younger

A: older
****
Q: Paragraph: Fossils found at the lowest layer of rock would be the oldest, as these would have been buried for the longest time, whereas fossils found closer to the surface would be buried more recently and therefore be younger.
 Question: A fossil in the lowest layer of rock would be _____ than one higher up. 
 Choices: A)younger 
B)older

A: older
****
Q: Paragraph: Anaerobic exercises cause muscles to get bigger and stronger.
 Question: When we spend less and less time lifting a lot of weights we become 
 Choices: A)weaker 
B)stronger

A:
weaker
****