Question

1. The Himalayan Mountains formed as a result of which of the following?

Oceanic crust collided with oceanic crust.


Continental crust collided with oceanic crust.


Continental crust collided with continental crust.


Magma erupted and cooled.


2.What do scientists think is the dominate force that drives plate movements?



convection cells within the outer core


slab pull from subducted plates


convection cells within the asthenosphere


slab push from seafloor spreading


3.Which supercontinent is thought to have formed about 1 billion years ago and to have included most of Earth’s land masses?



Gondwana


Laurasia


Pangaea


Rodinia


4.What was Pangaea?



a supercontinent about 250 million years ago


one of the large continents from Rodinia


a piece of Laurasia


a supercontinent about 1 billion years ago

5.What are the components of the plate tectonic theory? Check all that apply.



subduction


land bridges


seafloor spreading


Earth’s rotation


6.Which plate boundary occurs as oceanic crust collides with continental crust?



convergent plate boundaries


divergent plate boundaries


transform plate boundaries


transient plate boundaries

7.What did the discovery of subduction do for the theory of plate tectonics?



It explained how the continents move.


It provided the mechanism for seafloor spreading.


It explained how the continents move without the Earth getting bigger.


It explained how several supercontinents formed and broke up over time.


8.What was Harry Hess’s contribution to the plate tectonic theory?



seafloor spreading


continental drift


subduction


magnetic reversals in the oceans

Need answers ASAP please help me ? im giving 99 points for who answers thankyou

Answer 1

1. Continental crust collided with oceanic crust

2. slab pull from subducted plates

3. Pangaea

4. a supercontinent about 250 million years ago

5. seafloor spreading

6. convergent plate boundaries

7. It explained how the continents move without the Earth getting bigger.

8. seafloor spreading

Step-by-step explanation:

Answer 2

1 - The Himalayan orogeny and Tibetan uplift are a result of the tectonic forces
2 - .
3 -
4 - was a super continent that existed during the late Paleozoic and early Mesozoic eras.
5 - I'm pretty sure it's all the above.
6- divergent boundaries
7 - It explained how the continents move without the Earth getting bigger.
8 - magnetic reversals in the oceans