please answer in detail/fully answer the questions: 1. Describe a strategy you m
ID: 803329 • Letter: P
Question
please answer in detail/fully answer the questions:
1. Describe a strategy you might use to determine how long it took the white cliffs of Dover to have formed, how they were formed and in what environment they likely formed within, based on what you know about their make-up, location and how large and extensive they are. What do your conclusions tell you about the general nature of the earth over long periods of time?
2. One of the great challenges of earth science is to find ways to illustrate the inferred great age of the earth with the relatively short lifespan of the people observing and commenting on it. Can you think of a way you might try to show our age against the age of the earth in a way that makes it easier to grasp? What does the comparative age differences between human beings and the earth itself tell you about your own existence and significance as a “force” in the grand scheme of things
Explanation / Answer
They were mainly formed in marine environment. Here the softy chalk generally composed of cocoliths and algae. Because in marine conditions after death of algae and cocoliths their calcium carbonate shells were sink to the sea bottom and formed like white beds under sea during cretaceous period. By tectonic activity they were exposed and formed like white cliffs of dover. It is not a easy task to identify Earth age by humans. Because life of earth when compared to human is very very large. There are some methods are identified by human to calculate the age of the earth such as relative agem, absolute age. The relative age methods such as salinity, varve clock methods are very highly complcatve to human in calculation age because lifer span of human. But human identified radioactivity method to calculate the age of earth absolutely it is of 4.5billlion years. The age Earth is 4.5 billion years ageo where the Homo sepians started evolving 0.2 million years ago. Human are very recent species when compared to the age of the earth.