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kozerog [31]
2 years ago
13

How have different empires shaped the eastern Mediterranean regio?

Geography
1 answer:
Ierofanga [76]2 years ago
3 0
At its greatest extent, the Arab Empire controlled 3/4 of the Mediterranean region, the only other empire besides the Roman Empire to control most of the Mediterranean Sea. The Mediterranean Sea was important to the Roman Empire in that it was a vital trade link with other parts of the Empire, especially the Middle East and North Africa. As Rome grew, it needed the grains and other food from the Levant, and African animals were considered status symbols in the Roman royal courts.
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In the centuries between 500 and 1000, europe's center of gravity shifted away from the mediterranean toward the
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North and West

Explanation:

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City A has very little variation in temperature over the year. City B has cold winters and Warm summers. Why is this?
Kaylis [27]

Answer: B.) (City A is on a coast while city B is in the middle of a continent.)

Explanation:

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2 years ago
What is another name for the great Plains is also known by
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<span> another name for the great  plains is the Great American Desert</span>
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 Located at the leading edge of a temperature drop off. Bring heavy thunderstorms, rain, and hail. Cool, fair weather is likely
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8 0
3 years ago
Analysis of a rock sample that it contains 6.25% of its original uranium-235. How old is the rock? How do you know?
Andrews [41]

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!!!

7 0
3 years ago
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