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.

[Q]: Question: Dan is looking at shells that will be bad candidates for fossilization. He chooses the shells that are 
 Answer: softer
[A]: Hard shells fossilize more readily than soft bodied organisms, as they are better at resisting decay, take significantly longer to break down, and have a greater chance of surviving burial under layers of sediment.


[Q]: Question: Yolanda looks through a miniature telescope and then compares the view to a normal sized telescope. The telescope that less likely differentiates between celestial objects the best is 
 Answer: smaller
[A]: The larger a telescope's mirror or lens, the better it is at seeing narrowly separated objects as individual objects and the sharper the images look.


[Q]: Question: Long ago the surface of Venus warmed enough that greenhouse gases escaped into the atmosphere. As a result, the greenhouse effect on that planet 
 Answer: increased
[A]:
An increase in greenhouse gases leads to greater greenhouse effect.