Afossilized leaf contains 15% of its normal amount of carbon 14. how old is the fossil (to the nearest year)? use 5600 years as the half-life of carbon 14.

To determine the amount of substance left (At) in t years we use,
                                 At = (Ao) x e^-kt
where Ao is the initial amount and k is the constant. Substituting the given half-life
                                At / Ao = 0.5 = e^-k(5600)
The value of k is 1.2377x10^-4
Using the same equation,
                                At / Ao = 0.15 = e^-(1.2377x10^-4)(t)
The value of t is 15327. Thus, the fossil is approximately 15327 years old.

If the water vapor content stays the same and the temperature drops, then the relative humidity increases. its vise versa.if the water vapor content stats the same and the temperature rises, the relative humidity decreases. so, yes, i'd say that temperature and humidity have a strong relationship.