this question is rediculous... please help?

Question

If a layer of sandstone lies on top of a layer of limestone in which a 300-million-year-old fossil is found, and there are no unconformities, the layer of sandstone must be ____.

a. older than 300 million years
b. younger than 300 million years
c. about 300 million years old
d. older than 600 million years

Answer 1

what's so tough about this. if the sandstone is on top then it has to be younger than the fossil. if the fossil is 300 million years old then the sandstone can't be that old.

Answer 2

The answer is b because:

1. The fossil is 300 million years old and is in the limestone. That means the limestone is 300 million years old (the fossil is part of the limestone).
2. The sandstone is deposited on TOP of the limestone. Therefore the limestone had to exist prior to the sandstone being deposited on top of it. Therefore the sandstone is YOUNGER than the limestone.
3. So...the sandstone is younger than 300 million years old.

Answer 3

If the fossile is in the layer of limestone the sandstone is younger than 300 mil.
If the fossile is found in the layer of sandstone that it is about 300 mil.

Answer 4

That question is ridiculous, ridiculously easy. New sediment is deposited on top of existing layers. If the fossil in the limestone is 300m years old then the sandstone on top of it must be younger than 300m years.

Answer 5

its either B. or C. due to process of elimination because the fossil is apparently older than whatever may be lying on top of it due to the information they provide in the contextual question. it either has to be younger or slightly around the same age depending on where they are getting their sample limestone/sandstone from.

Answer 6

A. MORE THAN 300,000,000 YEARS OLD.

Answer 7

b.