7E1-Alfredo

Question 1

The Atmosphere

Answer 1

An atmosphere is the layers of gases surrounding a planet or other celestial body. Earth’s atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent of other gases.

Question 2

The Troposphere

Answer 2

The troposphere provides oxygen that we can breathe, keeps Earth at a livable temperature, and allows for weather to occur, making it a very important part of the

Question 3

The Stratosphere

Answer 3

Above the troposphere and below the mesosphere, we have the stratosphere. “Strat” means layer. This layer of our atmosphere has its own set of layers. There are no storms or turbulence here to mix up the air, so cold, heavy air is at the bottom and warm, light air is at the top.

Question 4

The Mesosphere

Answer 4

The mesosphere lies between the Thermosphere and the stratosphere. “Meso” means middle, and this is the highest layer of the atmosphere in which the gases are all mixed up rather than being layered by their mass. The mesosphere is 22 miles (35 kilometers) thick.

Question 5

The Thermosphere

Answer 5

The thermosphere is a layer of Earth’s atmosphere that is directly above the mesosphere and below the exosphere. It extends from about 90 km (56 miles) to between 500 and 1,000 km (311 to 621 miles) above our planet.

Question 6

The Exosphere

Answer 6

The exosphere is the outermost layer of our atmosphere. “Exo” means outside and is the same prefix used to describe insects like grasshoppers that have a hard shell or “exoskeleton” on the outside of their body. The exosphere is the very edge of our atmosphere.

Question 7

The Magnetosphere

Answer 7

The magnetosphere shields our home planet from harmful solar and cosmic particle radiation, as well as erosion of the atmosphere by the solar wind – the constant flow of charged particles streaming off the Sun

Question 8

Air Pressure

Answer 8

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

Question 9

Density

Answer 9

Density is the number of things—which could be people, animals, plants, or objects—in a certain area. To calculate density, you divide the number of objects by the measurement of the area. The population density of a country is the number of people in that country divided by the area in square kilometers or miles.

Question 10

Solar

Answer 10

Solar technologies convert sunlight into electrical energy either through photovoltaic (PV) panels or through mirrors that concentrate solar radiation. This energy can be used to generate electricity or be stored in batteries or thermal storage.

Question 11

layer

Answer 11

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

Question 12

uninhabitable

Answer 12

not safe or suitable to be lived in

Question 13

instability

Answer 13

lack of stability; the state of being unstable.

Question 14

continuous

Answer 14

marked by uninterrupted extension in space, time, or sequence

Question 15

elevation

Answer 15

the height to which something is elevated

Question 16

generate

Answer 16

to bring into existence

Question 17

Hazard

Answer 17

exposure or vulnerability to injury, loss, evil, etc.

Question 18

Increase

Answer 18

to become progressively greater (as in size, amount, number, or intensity)

Question 19

influence

Answer 19

“to affect or change someone or something in an indirect but usually important way.”

Question 20

constant

Answer 20

something invariable or unchanging:

Question 21

composition

Answer 21

the act or process of composing

Question 22

condition

Answer 22

you will only do it if this other thing also happens

Question 23

moderate

Answer 23

something that is average, mild or within reasonable limits