All about the earth

Question 1

4 Subsystems of earth

Answer 1

Lithosphere (Land) , hydrosphere (water), atmosphere (air), biosphere (Living things)

Question 2

Composition of earth’s Atmosphere

Answer 2

Nitrogen (78%)
Oxygen (20.9%)
Argon (.93%)
Carbon Dioxide (.0390%)

Question 3

This is where ozone layer is located

Answer 3

Stratosphere (12-50 km)

Question 4

This is where weather phenomenon occurs

Answer 4

Troposphere (0-11 km)

Question 5

This region does not absorb sun’s rays

Answer 5

Mesosphere (50-90 km)

Question 6

Intensely heated by sun’s rays, more 1000 oC

Answer 6

Thermosphere

Question 7

Atmosphere merges with space, outermost layer

Answer 7

Exosphere

Question 8

Type of water that Includes the ocean as well as water from lakes, rivers and creeks.

Answer 8

Surface water

Question 9

Type of water that Includes water trapped in the soil and ground

Answer 9

Ground water

Question 10

Type of water that includes water vapor

Answer 10

Atmosphere

Question 11

Includes ice caps and glaciers. Specifically called the cryosphere.

Answer 11

Frozen Water

Question 12

Is the solid part of the earth, from the core to the surface. Includes volcanoes, rocks, minerals, coal, oil etc.

Answer 12

Geosphere

Question 13

can be stored in the biosphere (within plants), atmosphere ( as carbon dioxide), hydrosphere (dissolves as CO2 in the oceans), and geosphere( as coal and oil deposits)

Answer 13

Carbon Cycle

Question 14

Only about 3% of the water on Earth is ? and about ?% of the freshwater is frozen in the form of glacial ice. (0.9% in liquid form)

Answer 14

Fresh water, 70%

Question 15

Process of water cycle

Answer 15

Water storage -> Evaporation -> Condensation -> precipitation.

Question 16

Made up of all frozen water on Earth. Ice, Sea, Ice, Glaciers, Ice Shelves, Ice Bergs, Snow.

Answer 16

Cryosphere

Question 17

The crust is composed of two rocks. Identify the elements composing these rocks.

Answer 17

Continental - Granite

Oceanic- Basalt

Question 18

A place where plates “float”. It is also part of the upper mantle, located below the crust of the earth.

Answer 18

Asthenosphere

Question 19

The crust and the upper layer of the mantle together make up a zone of rigid, brittle rock called the

Answer 19

Lithosphere

Question 20

are caused by the very hot material at the deepest part of the mantle rising, then cooling and sinking again

Answer 20

Convection Currents

Question 21

Bacteria release nitrogen into the soil from the atmosphere.

Plants use nitrogen to grow.

Answer 21

Nitrogen Cycle

Question 22

are pathways by which chemical substances move through biotic and abiotic components of the Earth

Answer 22

Biogeochemical Cycles

Question 23

Water moves - within between rocks, air, oceans, ice, and living matter.

Answer 23

Hydrologic Cycle

Question 24

Is any organized entity that consists of interrelated and interacting components.

Answer 24

System

Question 25

The interface between the mantle and the overlying crust is marked marked by a significant change of density, called a discontinuity.

Answer 25

Mohorovicic Discontinuity