Answer:
c. are too old (predate sedimentary deposition)
Explanation:
Radiometric dates calculated from minerals in sedimentary rocks produce ages that are too old and often predates the sedimentary deposition.
Radiometric dating involves the uses of radioactive elements in rocks to measure the absolute age of rock.
It involves comparing the daughter to parent ratio because the decay started when the minerals formed in a rock in a period of crystallization or metamorphic event.
- Sedimentary rocks are often made up of re-worked minerals.
- They are derived from pre-existing igneous and metamorphic rocks.
- When radioactive minerals from these sources finds their way into sediments, they give the age of their parent rock and not that of the sedimentary rock because their activity is not being reset.
Answer:Marshes are wetlands
Explanation: When plants within the Marshes die,rather than decompose through Microbial activities and release their Carbon into the atmospheres,the carbon remain buried within the muddy soil and due to the impact of the waves Microbial activities are slowed and in most cases prevented,As the ocean waves finds its path through the mashes more matters are deposited on the buried plants locking the carbon and preventing the release of carbon.
This is one of the main importance of the wetlands like mashes on climate change.
Which aspect of government does the United States have in common with the Roman Republic? Two consuls run the executive branch. Senators are elected into office for life. There are three branches of government.Oct 22, 2014
I think the stratosphere but I am not positive...i could be wrong