Absolute dating and relative dating are both used commonly to determine the age of fossils. Absolute dating gives the exact date and chronological order to which the fossil lived. They do this by looking at the surrounding ground and using the carbon to find out how old it is. Relative dating is pretty similar to this except it uses carbon dating which is a way of finding the approximate age of the fossil. They do this by looking at the layers of the earth and making an assumption as to how old it is.
Well , i think helium gas is present in the Earth Crust because metals found in the crust have nuclei that decay into another elements
One of this element that formed is Helium
hope this helps
Answer:
(a). The maximum loss of water vapor by the person is 
(b). The partial pressure of water vapor is 
Explanation:
Given that,
Temperature = 37.0°C
Volume of air = 2.00 L
Density of vapor = 44.0 g/m³
We need to calculate the maximum loss of water vapor by the person
Using formula of density
Put the value into the formula
(b). We need to calculate the partial pressure of water vapor
Using formula of pressure
Put the value into the formula
Hence, (a). The maximum loss of water vapor by the person is
(b). The partial pressure of water vapor is
750 divide 50 which is 15n
or it is 750 times 50 which is 37500n
