Quiz 4

Question 1

As early as the 1700’s, scientists and explorers notice a remarkable coincidence in the shape of the Atlantic coasts of Africa and which continent?

Answer 1

South America.

Question 2

The outermost solid layer of the Earth that comprises both continental and oceanic crust is called the:

Answer 2

lithosphere.

Question 3

Earlier than 200 million years ago, the continents were joined into one supercontinent called:

Answer 3

Pangea.

Question 4

Which of the following lists the main components of the Earth’s crust?

Answer 4

Oxygen, silicon, aluminum.

Question 5

One cubic meter of which of these would weigh the most?

Answer 5

Mantle.

Question 6

The Hawaiian Islands formed as they passed over a hot spot in the middle of the:

Answer 6

Pacific Ocean.

Question 7

A cross section of Earth reveals a layered structure that has different thicknesses and densities. How do geologists know this?

Answer 7

From observing the transit times through the Earth of waves generate by large earthquakes.

Question 8

Why is the inside of the Earth still hot?

Answer 8

Because the decay of large radioactive elements is creating heat in the Earth’s inner layers.

Question 9

Hokele’a was a replicate of:

Answer 9

a Hawaiian sailing ship.

Question 10

Eratosthenes used the length of a stick’s shadow at noon to:

Answer 10

Determine the circumference of the Earth.