DYNAMIC PLANET- Restless Earth

Question 0

Give four examples of how humans are damaging the Earth’s four spheres.

Answer 0

1) humans have polluted the atmosphere
2) humans have used up most of the fossil fuels in the Geosphere
3) deforestation, farming and pollution are causing extinctions in the biosphere
4) humans use if water means rivers and lakes of the hydrosphere are polluted

Question 1

What are the four spheres of earth?

Answer 1

The Atmosphere
The Hydrosphere
The Biosphere
The Geosphere

Question 2

What is the CRUST?

Answer 2

The surface of the earth. A rock layer forming the upper part of the lithosphere.

Question 3

What is the LITHOSPHERE?

Answer 3

The upper most layer of the earth, including the crust and top of the mantle. Split into tectonic plates.

Question 4

What are the two types of The Earth’s crust?

Answer 4

Continental crust

Oceanic crust

Question 5

Describe the CONTINENTAL CRUST.

Answer 5

.forms the land
.mostly made of granite ( low density igneous rock)
.much thicker

Question 6

Describe the OCEANIC CRUST.

Answer 6

. Made of basalt ( dense igneous rock)

. Much thinner