Question

question 1 (1 point)
earths structure - in the interactive website, click on each part of the earth and match to the correct information.

column a\t\t\tcolumn b

1. \tcrust\t\ta. only liquid layer of the earth and is about 2,300 km thick.
2. \tmantle\t\tb. hot, solid sphere made of iron and nickel. it is about 1,200 km in diameter.
3. \touter core\t\tc. dense, hot layer and is about 2,900 km thick
4. \tinner core\t\td. the thinnest layer of the earth. measuring 5 km thick under the ocean and averaging 30 km thick under the continents.

Explanation:

1. The crust is the thinnest layer of the Earth, with the given thickness details matching option d.
2. The mantle is a dense, hot layer and has a thickness of about 2,900 km, matching option c.
3. The outer core is the only liquid layer of the Earth and is about 2,300 km thick, matching option a.
4. The inner core is a hot, solid sphere made of iron and nickel with a diameter of about 1,200 km, matching option b.

Answer:

1. d. The thinnest layer of the Earth. Measuring 5 km thick under the ocean and averaging 30 km thick under the continents.
2. c. Dense, hot layer and is about 2,900 km thick
3. a. Only liquid layer of the Earth and is about 2,300 km thick.
4. b. Hot, solid sphere made of iron and nickel. It is about 1,200 km in diameter.