7.3.1/Ariel

Question 1

Atmosphere

Answer 1

Defenition-the envelope of gases surrounding the earth or another planet.

Question 2

Altitude

Answer 2

Defenition-the height of an object or point in relation to sea level or ground level.

Question 3

Density

Answer 3

Defenition-the degree of compactness of a substance.

Question 4

Troposphere

Answer 4

Defenition-the lowest region of the atmosphere, extending from the earth’s surface to a height of about 3.7–6.2 miles (6–10 km), which is the lower boundary of the stratosphere.

Question 5

Stratosphere

Answer 5

Defenition-the layer of the earth’s atmosphere above the troposphere, extending to about 32 miles (50 km) above the earth’s surface (the lower boundary of the mesosphere).

Question 6

Mesosphere

Answer 6

Defenition-the region of the earth’s atmosphere above the stratosphere and below the thermosphere, between about 30 and 50 miles (50 and 80 km) in altitude.

Question 7

Thermosphere

Answer 7

Defenition-the region of the atmosphere above the mesosphere and below the height at which the atmosphere ceases to have the properties of a continuous medium. The thermosphere is characterized throughout by an increase in temperature with height.

Question 8

Thermosphere

Answer 8

Defenition-the region of the atmosphere above the mesosphere and below the height at which the atmosphere ceases to have the properties of a continuous medium. The thermosphere is characterized throughout by an increase in temperature with height.

Question 9

Exosphere

Answer 9

Defenition-the outermost region of a planet’s atmosphere.

Question 10

Temperature

Answer 10

Defenition-the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.

Question 11

Nitrogen

Answer 11

Definition-the chemical element of atomic number 7, a colorless, odorless unreactive gas that forms about 78 percent of the earth’s atmosphere. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (−195.8°C) and is used as a coolant.

Question 12

Carbon dioxide

Answer 12

Defenition-a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.

Question 13

Oxygen

Answer 13

Defenition-a colorless, odorless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air.

Question 14

Altitude

Answer 14

Defenition-the height of an object or point in relation to sea level or ground level.

Question 15

Density

Answer 15

Defenition-the degree of compactness of a substance.

Question 16

Air pressure

Answer 16

Defenition-the force exerted by air, whether compressed or unconfined, on any surface in contact with it.

Question 17

Consentration

Answer 17

Defenition-the abundance of a constituent divided by the total volume of a mixture.

Question 18

Condition

Answer 18

Defenition-the state of something with regard to its appearance, quality, or working order.

Question 19

Constant

Answer 19

Defenition-occurring continuously over a period of time.

Question 20

Continuous

Answer 20

Defenition-forming an unbroken whole; without interruption.

Question 21

Composition

Answer 21

Defenition-the nature of something’s ingredients or constituents; the way in which a whole or mixture is made up.

Question 22

Elevation

Answer 22

Defenition-the action or fact of elevating or being elevated.

Question 23

Generate

Answer 23

Defenition-cause (something, especially an emotion or situation) to arise or come about.

Question 24

Hazard

Answer 24

Defenition-a danger or risk.

Question 25

Increase

Answer 25

Defenition-become or make greater in size, amount, intensity, or degree.

Question 26

Influence

Answer 26

Defenition-the capacity to have an effect on the character, development, or behavior of someone or something, or the effect itself.

Question 27

Inhabitable

Answer 27

Defenition-suitable to live in; habitable.

Question 28

Instability

Answer 28

Defenition-lack of stability; the state of being unstable.

Question 29

Layer

Answer 29

Defenition-a sheet, quantity, or thickness of material, typically one of several, covering a surface or body.

Question 30

Moderate

Answer 30

Defenition-average in amount, intensity, quality, or degree.

Question 31

Monitor

Answer 31

Defenition-an instrument or device used for observing, checking, or keeping a continuous record of a process or quantity.

Question 32

Originate

Answer 32

Defenition-have a specified beginning.

Question 33

Pollutant

Answer 33

Defenition-a substance that pollutes something, especially water or the atmosphere.

Question 34

Property

Answer 34

Defenition-a thing or things belonging to someone; possessions collectively.

Question 35

Radiation

Answer 35

Defenition-the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.

Question 36

Region

Answer 36

Defenition-an area or division, especially part of a country or the world having definable characteristics but not always fixed boundaries.

Question 37

Relative

Answer 37

Defenition-considered in relation or in proportion to something else.

Question 38

Solar

Answer 38

Defenition-relating to or determined by the sun.

Question 39

Stable

Answer 39

Defenition-(of an object or structure) not likely to give way or overturn; firmly fixed.

Question 40

Structure

Answer 40

Defenition-the arrangement of and relations between the parts or elements of something complex.

Question 41

Surface

Answer 41

Defenition-the outside part or uppermost layer of something (often used when describing its texture, form, or extent).

Question 42

Uninhabitable

Answer 42

Defenition-(of a place) unsuitable for living in.