ELS (LG 2)

Question 1

Solid earth that includes the continental and ocean crust. It is not static (unchanging) but it surface (crust) is in a constant state.

Answer 1

Geosphere

Question 2

Layers of the earth

Answer 2

crust, upper mantle, lower mantle, outer core, inner core

Question 3

Earth’s outermost layer

Answer 3

Crust

Question 4

Denser and thinner, mainly composed of basalt.

Answer 4

Oceanic crust

Question 5

Less dense and thicker, mainly composed of granite

Answer 5

Continental crust

Question 6

Thick layer of rock inside the planet. Temperature range approximately 500k at the upper boundary.

Answer 6

Upper mantle

Question 7

Made of solid rock, characterized by extremely high pressure and temperature

Answer 7

Lower mantle

Question 8

Fluid layer about 2,260 km thick composed of mostly iron and nickel.

Answer 8

Outer core

Question 9

Innermost layer of the earth. Incredibly dense composed of iron and nickelThe innermost

Answer 9

Inner core

Question 10

“Life zone” which includes all living organism

Answer 10

Biosphere

Question 11

Hierarchy in the biosphere

Answer 11

Food chain

Question 12

Hydrosphere contains what type of water

Answer 12

• surface
• under the surface
• atmosphere
• frozen

Question 13

amount of fresh water in earth

Answer 13

3% amount

Question 14

Fresh water from frozen form

Answer 14

70% amount

Question 15

the blanket of air that surrounds Earth

Answer 15

Atmosphere

Question 16

layers of the atmosphere

Answer 16

troposphere, stratosphere, mesosphere, thermosphere, exosphere

Question 17

The lowest layer of Earth’s atmosphere. Most weather exist

Answer 17

Troposphere

Question 18

where ozone layer is located

Answer 18

stratosphere

Question 19

Most space debris and meteor burn

Answer 19

Mesosphere

Question 20

directly above the mesosphere and below exosphere

Answer 20

Thermosphere

Question 21

Layer where gravity is too weak. Outermost layer of the atmosphere.

Answer 21

Exosphere