A.enforces because the others so the other stuff
Answer:
The age of the rock = 2800.6 million years = 2.8 billion years.
A simple method of analysis similar to Carbon dating is used to obtain the required age of the rock. Radioactive substances decay according to first order reaction kinetics. So, plugging all the required parameters into the general equation for amount of substance left in a first order decay gives us the age of the rock.
Explanation:
Half life of Uranium-235 = 700 million years (from literature)
The decay of radioactive substances follow first order reaction kinetics.
The general equation is given as
A(t) = A₀ e⁻ᵏᵗ
A(t) = Amount of radioactive substance left after a particular time = 6.25%
A₀ = initial amount of radioactive substance = 100%
t = time that has passed since the beginning = age of the rock = ?
k = decay constant
The decay constant is related to the half life (T) through the relation,
k = (In 2)/T
k = (0.693/700) = 0.00099 /million years
A(t) = A₀ e⁻ᵏᵗ
6.25 = 100 e⁻ᵏᵗ
0.0625 = e⁻ᵏᵗ
In e⁻ᵏᵗ = In 0.0625 = -2.7726
-kt = - 2.7726
t = (2.7726/0.00099) = 2800.6 million years
t = 2.8 billion years.
Hope this Helps!!!
It is false that the total fertility rate is a measure of the number of children that would be born if all women lived to the life expectancy age for the given country in which they live.
<h3>What is total fertility rate?</h3>
- The number of children that would be born to each woman collectively if she were to survive to the end of her childbearing years and have children in accordance with the current age-specific fertility rates is the total fertility rate for a given year.
- Children per woman is how it is stated. The sum of age-specific fertility rates, which typically apply to women between the ages of 15 and 49, is used to directly calculate the total fertility rate, or five times the sum if the data are provided in five-year age groupings.
- We can predict how a population might increase, decrease, or stable over time by using the TFR, mortality, and migration projections.
- The total fertility rate can be used to forecast future age distributions within a population as well as other demographic changes.
Learn more about total fertility rate here:
brainly.com/question/18625121
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"1. moisture (water vapor) in the air near the surface
2. instability - relatively large decrease of air temperature with height
3. lift - some process (such as a front) that forces air to rise"
The air is dry during the summer and any moisture amount is increased in the afternoon as the temperature cools.
