Question

layers of the earth and pangaea

1. ______ layer that is 4 - 5 miles thick

a) asthenosphere
b) inner core
c) oceanic crust
d) continental crust

1. ______ layer that is constantly stirring its contents
2. ______ layer that could press your body to the size of a marble
3. ______ layer that is 24 miles thick
4. a super continent that existed 250 million years ago is known as ______

a) glacier
b) pangaea
c) satcatuion
d) asthenosphere

1. thickest section of the mantle

a) crust
b) upper mantle
c) asthenosphere
d) mesosphere

1. alfred wegener had studied _______________ in college

a) art
b) math
c) medical
d) meteorology

1. which of the following is a characteristic of the lithosphere?

a) plastic - like
b) mantle only
c) molten
d) crust and upper mantle together

1. which of the following is the title of wegeners book?

a) evidence for continental drift
b) the origin of continents and oceans
c) evidence for supercontinent
d) the origin of the continents

Explanation:

1. Matches the thickness of oceanic crust.
2. The asthenosphere is a plastic, slowly churning layer.
3. The inner core has extreme pressure.
4. Matches the typical thickness of continental crust.
5. Pangaea is the well-documented supercontinent from 250 million years ago.
6. The mesosphere (lower mantle) is the thickest mantle section.
7. Alfred Wegener initially studied meteorology.
8. The lithosphere is defined as the crust plus upper rigid mantle.
9. Wegener's foundational book has this title.

Answer:

1. c) oceanic crust
2. a) asthenosphere
3. b) inner core
4. d) continental crust
5. b) Pangaea
6. d) mesosphere
7. d) meteorology
8. d) crust and upper mantle together
9. b) The Origin of Continents and Oceans