Earth's atmosphere

Question 1

percentage of gases in earth’s atmosphere

Answer 1

Nitrogen: 78%; Oxygen:21%; All other gases: 1%

Question 2

The pressure of wet and dry air.

Answer 2

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Question 3

Air Pressure vs. Altitude

Answer 3

Air pressure decreases as altitude increases. Air pressure increases as altitude decreases.

Question 4

Properties of air.

Answer 4

1) Air has mass. 2) Air has Density which is mass divided by volume. 3) Air has pressure, which is a force pushing on an area or surface.

Question 5

Instruments used to measure wind.

Answer 5

An anemometer is a device used for measuring wind speed

Question 6

Instrument used to measure air pressure.

Answer 6

A barometer is used to measure atmospheric pressure.

Question 7

Instrument used to measure humidity.

Answer 7

hygrometer

Question 8

How to calculate relative humidity with a wet bulb and dry bulb.

Answer 8

Subtract the wet bulb temperature from the dry bulb temperature. Dry bulb - wet bulb = difference in temperature between the two bulbs. Find the temperature of the dry bulb on the column for the dry temperature bulb. Intersect the difference between the wet and dry bulb temperature with the dry bulb temperature. The number at that intersection is the relative humidity.

Question 9

“pauses” in the atmosphere are:

Answer 9

Boundaries (“pauses”) between layers are defined by where temperature stays about the same with height.

Question 10

Order of the layers:

Answer 10

1) Thermosphere 2) Mesophere 3) Stratosphere 4) Troposphere (From highest elevation to lowesta)

Question 11

The basis for dividing the layers:

Answer 11

The atmosphere can be divided into four layers based on temperature variations. The layer closest to the Earth is called the troposphere. Above this layer is the stratosphere, followed by the mesosphere, then the thermosphere.

Question 12

The layer people live in:

Answer 12

Troposphere

Question 13

Meteors are found in:

Answer 13

Meteors burn up in the mesosphere.

Question 14

Aurora Borealis is found in:

Answer 14

Thermosphere/Ionosphere

Question 15

The ozone layer is located in:

Answer 15

the stratosphere.

Question 16

The temperature of the Troposphere

Answer 16

decreases with elevation

Question 17

The temperature of the stratosphere

Answer 17

increases with elevation

Question 18

The temperature of the Mesosphere

Answer 18

decreases with elevation

Question 19

The temperature of the Thermosphere

Answer 19

increases with elevation

Question 20

Define Ozone

Answer 20

Ozone is a colorless, odorless reactive gas comprised of three oxygen atoms.

Question 21

Ozone absorbs energy from

Answer 21

ultraviolet (UV) radiation coming from the sun.

Question 22

What is the greenhouse effect?

Answer 22

The greenhouse effect is defined as when the Earth’s atmosphere becomes thick with gases and substances which trap the sun’s radiation, making the Earth warmer.

Question 23

The relationship between air pressure and density is

Answer 23

f pressure increases, density generally increases in response.

Question 24

Weather versus climate:

Answer 24

Weather is the day-to-day state of the atmosphere and its short-term variation in minutes to weeks. Climate is the weather of a place averaged over a period of time, often 30 years. Climate is the weather of a place averaged over a period of time, often 30 years.