Scientists have worked for more than 200 years to determine the age of the earth. Which of the following determined the most accurate estimate of Earth's age? Question 10 options: Lord Kelvin: A molten earth cooled slowly; he calculated its age using physics

James Hutton: Earth was dynamic, geological forces that operated in the present operated the same way in the past

Ernest Rutherford: Radioactivity heated interior earth; he dated rocks by their radioactive substances- radioactive decay.

William Smith: He relatively dated rock layers using fossils; layers containing similar fossils were the same age.

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

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