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mel-nik [20]
3 years ago
12

This chart shows the amount of daylight that four cities get in January and July.

Biology
1 answer:
umka2103 [35]3 years ago
5 0
Answer is c just took the test
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The kidneys are an essential organ for which system?
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Explanation:  excretory system

The kidneys do a lot, but their most important job is to take waste out of the blood and make urine . The urinary tract takes this waste out of the body when a person

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A fossil is found to have a 14c14c level of 73. 73. 0 ompared to living organisms. how old is the fossil?
AnnyKZ [126]

If the 14C level of fossils is 73% compared to living organisms. It will be 2602 years.

<h3>What is radiocarbon dating? </h3>

This method is used to estimate the relative age of carbon-based materials. This is done usually for fossils which originate from living organisms.

This age is estimated by estimating the percentage of carbon-14 isotopes in the fossil. This is done by comparing this percentage to a reference standard used internationally. This method is of tremendous use in palaeontology. It has also found its use in hydrology, oceanography, geology etc.

Fossil age is determined by

At = (Ao) x (1 - 0.5)^(t/h)

Here, At/Ao = 0.73

So, 0.73 = 0.5^(t/5730)

Therefore, t = 2602 years

Read more about carbon dating, here

brainly.com/question/3753282

#SPJ4

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2 years ago
Explain what might have happened at the end of the archean to cause these orogenies to occur globally and synchronized.
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Carbon dioxide is an important influence on climate because ________.
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Earth's upper atmosphere controls the radiation that escapes to space.

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How is the mississippi river Important to the US development
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