24 is the answer...............
B. 1 in 4 which is also 25%
Answer:
Explanation:
This molecular breakdown produces thermogenic methane—natural gas. Methane, probably the most abundant organic compound on Earth, is made of carbon and hydrogen (CH4). ... Landfills, for example, are full of decomposing matter that methanogens break down into a type of methane called biogenic methane.
The answer would be D.
As for The other options, it cannot be A because there is no way we could know if they are exactly similar. B states they are dramatically different when there is obviously some similarity. C states that they are from the same time period, which is impossible as there is no way a layer of sedimentary rock can be the same age as current day mud. There are likely many layers above the studied area that can denote the age.
