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stepladder [879]
2 years ago
11

Current US territories in the Pacific include the islands of Vanuatu, Tonga, and Samoa.

Geography
2 answers:
arlik [135]2 years ago
6 0
Answer: This statement is false because the islands are owned by Great Britain.
enot [183]2 years ago
5 0

FALSE! Hope This Helps! :)

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Where are Paris's industrial areas located?
elena-s [515]

Answer:

From Nanterre through Ivry-sur-Seine to Pantin, evidence of the city's industrial past can be found all over Greater Paris.

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2 years ago
In this typical animal cell, which structure would be used for locomotion?
stiv31 [10]
<span>flagellum  is your answer hope i help</span>
3 0
3 years ago
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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
What are ways in which a geologist may determine the density of earth materials?
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Geologist may determine the density of earth materials by measuring the mass of the object and its volume.

<h3>What is density ?</h3>

The mass of a substance per unit of volume is its density. Density is most frequently represented by the symbol, however Latin letter D may also be used. The formula for density is mass divided by volume

Earth's density is around 5.513 g/cm3 if you average the density throughout the entire globe. However, if you compare the density of the Earth by its layers, you'll notice that it rises continuously from the crust to the core.

To learn more about density

brainly.com/question/15164682

#SPJ12

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1 year ago
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Which of the following is one reason why some plants have specific markings?
Zina [86]

Answer:

B. to camouflage them from herbivores

Explanation:

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2 years ago
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