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3 years ago

Where in Ireland can sandstone be found

2 answers:

3 0

Sedimentary rocks are widespread. They include the Old Red Sandstones from the Devonian period. These are common in the 'ridge and valley' landscape that runs across much of south-west Ireland. Limestone also covers much of the country most notably in the midlands and in areas such as the Burren in Co.:)

Julli [10]3 years ago

3 0

Answer:

South West Ireland , they include the old red sandstone from devonian period.

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Why do cities form and how have they affected culture?

DiKsa [7]

Answer:

They create slums.

They form around business needs.

They create opportunity.

Life moves faster in the city.

Explanation:

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3 years ago

A town has two shopping malls. A survey conducted on the shopping preferences of the town's residents showed that 62% of the res

jeyben [28]

Given:

62% of the residents visit Comet Mall.

73% of the residents visit Star Mall.

48% of the residents visit both malls.

To find:

The probability that a resident chosen at random shops at either Comet Mall or at Star Mall.

Solution:

Let A be the event that the residents visit Comet Mall and B be the event that residents visit Star Mall. Then, we have

$P(A)=62\%$

$P(B)=73\%$

$P(A\cap B)=48\%$

We need to find the probability that a resident chosen at random shops at either Comet Mall or at Star Mall. It means, we have to find the value of $P(A\cup B)$ .

We know that,

$P(A\cup B)=P(A)+P(B)-P(A\cap B)$

On substituting the given values, we get

$P(A\cup B)=62\%+73\%-48\%$

$P(A\cup B)=87\%$

Therefore, the probability that a resident chosen at random shops at either Comet Mall or at Star Mall is 87%.

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2 years ago

You're studying a region, and have a political distribution map that you can

Ksenya-84 [330]

Answer:

Explanation:

Location of major rivers or large lakes,

Boundaries between counties and states

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3 years ago

Describe radiometric dating and discuss three prerequisites that must be met in order to obtain a reliable radiometric date on a

Phantasy [73]

Answer:

Radiometric dating is usually defined as a method that helps in calculating the age of rock depending on the presence of radioactive isotopes and its rate of decay. In order to calculate this, the half-life of the isotope element must be known. This method is commonly used by geologists.

The conditions that are needed to fulfill in order to determine the age of a granitic batholith are as follows-

The rate at which these materials decay must be a constant

There should be an exact amount of both the parent as well as the daughter elements.

Since it is a batholith, so it has formed from the crystallization of magma at a certain depth. So, these granitic rocks must have remained within a closed system, right from the time of its formation.

The various methods of radiometric dating that can be used to date this granitic batholith are-

Uranium-lead dating- It is an efficient method to date the rocks that are of about 4 to 4.5 billion years.

Potassium-argon dating- It is also commonly used to date rocks that are about 4 billion years old.

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3 years ago

Natural Disaster Risk Assessment

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