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Bogdan [553]
3 years ago
12

What happened to the world’s population between 1950 and 2000?

Geography
2 answers:
serg [7]3 years ago
4 0
I am sure it grew exponentially <span />
Elanso [62]3 years ago
3 0
An increase in the world’s population happened between the year 1950 and 2000. This period is the time of the Industrial revolution and wars. After the wars, people are excited to see their families and start living and growing. So, in this period the population rapidly increased.
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Which of the following statements is not true? a. About 30 percent of all Belgians speak French, while about 55 percent speak Fl
Anna007 [38]
<span> c. Relations between Belgium’s two ethnic groups improved after the country gained its independence from the Netherlands in 1830.

</span>The statement which is not true is that relations between Belgium’s two ethnic groups improved after the country gained its independence from the Netherlands in 1830 because it is true that both French and Flemish are official languages of Belgium, as it is true that about 30 percent of all Belgians speak French, while about 55 percent speak Flemish. <span>The Belgian government has passed laws to decentralize its government. is also a true statement, leaving only c as possible response.</span>
5 0
3 years ago
Substances that can eat through or dissolve metal storage tanks and equipment are called
zubka84 [21]
They are called CORROSIVE
7 0
3 years ago
What might have happened if panarabism had been more widely accepted among arab states?
MariettaO [177]
Pan Arabism is a political movement promoting the idea in which Arabs should unite in forming one country or a state. The idea was first done during 1800s in the later part and 1900s.If this stayed it would have led to greater unity for Arab and countries like Egypt and Syria could have stayed united which is the answer.
7 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
In North America, where is population density the highest?
liubo4ka [24]

In terms of individual states, the answer would be New Jersey. Otherwise, the REGION that is most densely populated is the east coast, specifically the Northeastern part of the U.S.

Hope this helps!

3 0
2 years ago
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