2 years ago

DNA stays in the ground for thousands of years (True/or False)

Geography

1 answer:

Kobotan [32]2 years ago

6 0

Answer:

true

Explanation:

If it's buried a few feet below the ground, the DNA will last about 1,000 to 10,000 years. If it's frozen in Antarctic ice, it could last a few hundred thousand years

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Knowing that is 150 meters (about 450 feet) from the waste dump to the homes that existed in 1978, estimate how long it took for

kari74 [83]

Answer:

$\large \boxed{\text{About 50 yr}}$

Explanation:

$\text{Time} = \text{150 m} \times \dfrac{\text{100 cm}}{\text{1 m}}\times \dfrac{\text{1 s}}{ 10^{-5}\text{ cm}} \times \dfrac{\text{1 da}}{\text{86 400 s }} \times \dfrac{\text{1 yr}}{\text{365.25 da}}\approx \text{50 yr}\\\\ \text{It took $\large \boxed{\textbf{about 50 yr}}$ for the waste to move from the dump to the homes.}$