Answer:
Solifluction
Explanation:
Solifluction involves the movement of soil particles or other materials which has been exposed to water down a slope. This process is common in areas with water bodies and a steep slope.
A major method by which material gets delivered to the Colorado River in the Grand Canyon is through the solifluction process as a result of the presence of water and steep slope.
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!!!
I am giving you three poems. you can mix them if you can't ask me.
Answer:
B. elderly people
Explanation:
I don't know if this counts but personally growing up in an Asian community, I think it's safe to say we pretty much worship our elders and if we didn't we'd be in big trouble.
So why is it B.?
Respecting the elderly is an ancient Asian tradition, and is also a part of daily life in terms of respect. B. falls into both categories.
Why is it not the others?
Japanese have just incorporated urban life and trendy fashion into their life and not any sooner than this generation so not A.
Outsiders is not very relevant to the answer because if you're an outsider, so be it so I wouldn't say C.
Asians think more for family than theirselves which is why it wouldn't be D.
