Question Incorrect 0.00 points out Which of the following is true regarding the

Question

Question Incorrect 0.00 points out Which of the following is true regarding the geologic time scale Select one: of 1.00 a, 87% of the Earth's history occurred during the Cenozoic era b, 87% of the Earth's history occurred during the Teriary X c. We live in the Holocene d. We live in the Precambrium Flag question . Question 7 Incorrect 0.00 points out The boundary between the crust and the rest of the lithospheric upper mantle is a discontinuity known as the Select one: of 1.00 Flag question b. Moho c. Wegener d. Hess Your answer is incorrect. Question 8 Incorrect 0.00 points out of 1.00 Which of the following statements about Earth's core is true? Select one: a. It is composed primarily of iron&nickelX; Flag question b. Temperatures in the core reach several thousand degrees C. Temperatures and pressures are higher in the inner core than in the outer core d. All of the above

Explanation / Answer

2. (c) We live in Holocene

We currently live in holocene epoch which began about 11500 years ago.

7. (b) Moho

the boundary between the crust and the rest of the lithospheric upper mantle is called Mohorovicic discontinuity. Also known as Moho.

8. (d) all of the above

All the statements are correct.

earth core is mainly composed of iron and nickel.Also the temperature is around 6000oC

Also temerature and pressure of inner core is more than outer core.

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