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sergiy2304 [10]

3 years ago

8

The relative age of a rock or fossil tells us: the exact age OR the age compared to other rocks or fossils

1 answer:

ASHA 777 [7]3 years ago

3 0

I’m really sorry if this doesn’t help but here’s what I found:

Relative dating determines which of two fossils is older or younger than the other, but not their age in years. Relative dating is based on the positions of fossils in rock layers. Lower layers were laid down earlier, so they are assumed to contain older fossils. ... This gives the fossil an approximate age in years.

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Vinil7 [7]

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A 3.0-L sample of helium was placed in container fitted with a porous membrane. Half of the helium effused through the membrane

zhenek [66]

Explanation:

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And, half of the helium (1.5 L) effused in 24 hour. So, the rate of effusion of He gas is calculated as follows.

$\frac{1.5 L}{24 hr}$

= 0.0625 L/hr

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= 2.83

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4 years ago