What do you notice about the temperature at each of the layers boundaries

The mesosphere starts at 31 miles (50 km) and extends to 53 miles (85 km) high. The top of the mesosphere, called the mesopause, is the coldest part of Earth's atmosphere, with temperatures averaging about minus 130 degrees F (minus 90 C). This layer is hard to study

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her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.

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