In my opinion, I find it better to consume local products rather than global products. I say this because I believe it’s good to support your local community instead of a global company that’s already big. Local products are probably less transported into places meaning there is a low risk of it being infectious.
Answer:
A prolonged drought with very high temperatures can affect the water levels of the water table underground.
Explanation:
The water that is located underground is generally safer when it comes to climate or weather conditions, at least in the shorter run. They are not immune though, as even though they are underground, they are not very deep, and also their levels depend on the outside conditions. Several climate or weather conditions can have an effect on the water table of the underground water, but the one that sticks out the most is a prolonged drought with high temperatures.
A prolonged period of drought will mean that there will be no precipitation for a long period of time. Without precipitation, there will be no new water coming in the undergroung water table. On the other hand, high temperatures will result in intense heating up of the ground, and some of the heat will be reaching the water table underground, so the evaporation will increase. With no water coming in and increased evaporation, the levels of water will drop.
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!!!
The Red Terror was a period of the political repression and mass killings carried out by Bolsheviks after the beginning of the Russian Civil War in 1918.
