Advanced Placement (AP) College

What condition results in magma cooling and forming a “glassy” igneous rock?
A)
extremely slow cooling
B)
cooling in the presence of oxygen
C)
extremely rapid cooling
D)
partial melt cooling
E)
extremely high pressure

Answers

Answer 1

Answer: C)  extremely rapid cooling

Explanation:

When magma goes through extremely rapid cooling and especially if it did not dissolve enough water into it, it could freeze to glass or the mineral crystals that will be formed will be so small, they will look like glass.

This is because the reactions that occur to create minerals are affected directly by temperature such that if the magma cools down extremely slowly, it will form very large crystals but extremely fast would result in small crystals.

Answer 2

Answer:C

Explanation:

Related Questions

Please help!
What does congress do? How does a bill become a law?

Answers

A bill can be introduced in either chamber of Congress by a senator or representative who sponsors it. ... The president can approve the bill and sign it into law or not approve a bill. If the president chooses to veto a bill, in most cases Congress can vote to override that veto and the bill becomes a law.

Which of the following best represents the Income approach for computing GDP? *
a.GDP = R+W+I+P
b.GDP = C+Ig+G=X-M
c.GDP = L+L+C+E
d.GDP = CE
e.None of these.

Answers

E: None of these

GDP = C + G + I + NX

C = consumption or all private consumer spending within a country’s economy, including, durable goods (items with a lifespan greater than three years), non-durable goods (food & clothing), and services.

G = total government expenditures, including salaries of government employees, road construction/repair, public schools, and military expenditure.

I = sum of a country’s investments spent on capital equipment, inventories, and housing.

NX = net exports or a country’s total exports less total imports.

The income approach for computing GDP is GDP = R+W+I+P

Gross domestic product (GDP) is the sum of final goods and services produced in a country in a given year

There are three methods of calculating GDP:

Income approach = Wages of labour + Rental income from ownership of capital + Interest + Profits.

Expenditure approach = Consumption spending by households + Investment spending by businesses + Government spending + Net export

Production approach = final cost of goods and services - intermediate cost

To learn more about GDP, please check: https://brainly.com/question/15899184?referrer=searchResults

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