Oceans chapter 2

Why was Wegener’s theory not accepted?

How does the age of the ocean crust compare to the age of the continents?

What caused the Banded Iron formations?

Where are oil and gas deposits found?

Describe the continental crust

How many chemically distinct layers of the Earth are there today?

Where is the ocean floor destroyed?

What are the shallow tideless bodies of water that covered extensive areas of the continental interior called?

What percent of the heat reaching the poles comes from the ocean?

Which was NOT evidence that Alfred Wegener had for continental drift?

What process turned the water vapor into liquid water?

When the entire planet was covered with ice and only the tops of the highest mountains could be seen through the ice.

Which type of rock makes up the ocean crust?

Which is NOT a plate boundary?

Where is the ocean floor created?

What made the Earth differentiate into various layers?

Where did the Earth’s internal heat come from (three main sources)?

What caused the Earth’s temperatures to go from the “green house to the ice house”?

How old is the Earth?

What drives plate tectonics?

Plates move toward each other and ocean crust is destroyed at subduction zones

What is the name of Earth’s crust and ridged upper mantle called?

What is the composition of the Earth's inner core?

Which type of rock makes up the continents?

What is the weak plastic like layer of the Earths mantle called?

How old are the oceans?

Describe the ocean crust

Why is the center of the Earth Iron and nickel?

What are convection cells based on?

Where on Earth did free oxygen first appear?

Which two factors can cause sea level to change?

Where are the oldest rocks and how old are they?

Plates move side by side and no crust is created or destroyed

How are tsunamis created?

What mineral is common on the continents but absent from the ocean crust?

What force brought the rocks in space together to form the planetesimals?

Plates move apart and ocean crust is created.

How are Island chains like Hawaii created?

How much higher has sea level been in the past?