earths layers

Question 1

outermost earth layer

Answer 1

lithosphere

Question 2

2nd outermost layer

Answer 2

Asthenosphere

Question 3

above the stratosphere and below the thermosphere

Answer 3

mesosphere

Question 4

hot molten center of the earth

Answer 4

inner core

Question 5

also molten 2nd inner layer

Answer 5

outer core

Question 6

an elastic wave in the earth produced by an earthquake or other means.

Answer 6

Seismic Waves

Question 7

relatively thin part of the earth’s crust that underlies the ocean basins

Answer 7

Oceanic Crust

Question 8

the relatively thick part of the earth’s crust that forms the large landmasses

Answer 8

Continental Crust

Question 9

the degree of compactness of a substance.

Answer 9

density

Question 10

German polar researcher, geophysicist and meteorologist

Answer 10

Alfred Wegener

Question 11

movement of the Earth’s continents relative to each other

Answer 11

Continental Drift

Question 12

a region of active deformation where two or more tectonic plates or fragments of the lithosphere are near the end of their life cycle.

Answer 12

Convergent Boundary

Question 13

a linear feature that exists between two tectonic plates that are moving away from each other.

Answer 13

Divergent Boundary

Question 14

where plates slide sideways past each other

Answer 14

Transform Boundary

Question 15

new oceanic crust is formed through volcanic activity

Answer 15

Sea-floor Spreading

Question 16

a supercontinent that existed during the late Paleozoic and early Mesozoic eras.

Answer 16

Pangaea

Question 17

more northern of two supercontinents that formed part of the Pangaea supercontinent around 335 to 175 million years ago.

Answer 17

Laurasia

Question 18

a supercontinent that formed from the unification of several cratons in the Late Neoproterozoic, merged with Laurussia in the Carboniferous to form Pangaea, and began to fragment in the Mesozoic

Answer 18

Gondwana

Question 19

an extinct genus of reptile from the Early Permian of southern Africa and South America

Answer 19

mesosauras

Question 20

the largest and best-known genus of the extinct order of seed ferns known as Glossopteridales

Answer 20

Glossopteris