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).

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
older

Paragraph: The forest habitat of elephants has also decreased in size due to humans moving in, so the numbers of the elephants have decreased.
 Question: When humans grow trees what happens to the population of the animals in the forest 
 Choices: A)Lower 
B)Increase
Increase

Paragraph: The density of the atmosphere decreases with an increase in the height above sea level (altitude).
 Question: Donna is noting that the atmosphere is very dense where she's visiting, so compared to her home she must be at an altitude that is 
 Choices: A)higher 
B)lower
lower