"Composition and Vertical Stratification of the Atmosphere" Atmosphere on Earth PPT Courseware

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"Composition and Vertical Stratification of the Atmosphere" Atmosphere on Earth PPT Courseware

Part One Content: Learning Objectives:

1. Use graphic information to explain the composition and vertical stratification of the atmosphere.

2. Use examples to explain the relationship between the composition and vertical stratification of the atmosphere and production and life.

The composition and vertical stratification of the atmosphere PPT, the second part of the content: independent preview to explore new knowledge

1. Composition of the atmosphere

1. The composition of the lower atmosphere: dry air, water vapor and solid impurities.

2. Composition and function of dry air

(1) Oxygen: a substance necessary to maintain life activities.

(2)Nitrogen: the basic element for living organisms on earth.

(3) Carbon dioxide: The raw material for photosynthesis of green plants, which has a ___ effect on the ground.

(4) Ozone: Strongly absorbs ultraviolet rays from the sun and is known as the "protective umbrella of life on earth."

(5) Water vapor and impurities: are necessary conditions for ________ and affect weather changes.

[Special Reminder]

Since the Industrial Revolution, human production activities have emitted many polluting gases into the atmosphere, which has complicated the composition of the atmosphere, resulting in air pollution and affecting the development and changes of the atmospheric environment.

2. Vertical stratification of the atmosphere

1. Classification basis: differences in _____, density and movement conditions in the vertical direction of the atmosphere.

2. Comparison of features of each layer

Vertical stratification, temperature characteristics, atmospheric movement conditions, relationship with humans

A_____ layer _____ ____ moves significantly as the height increases. It is the closest. The _____ phenomenon is complex and changeable.

B_____ layer _____ with increasing altitude, mainly for ____ movement, suitable for aircraft flight

C The upper atmosphere first decreases and then increases with increasing height - there is an ionized layer that can reflect ____ radio waves

Self-service diagnosis

(1) Oxygen is the most abundant and important gas component in the atmosphere. ()

(2) The ozone layer has a protective effect on surface organisms because it strongly absorbs infrared rays. ()

(3) The temperature change characteristics of the troposphere and stratosphere are similar. ()

(4) The existence of the ionosphere in the upper atmosphere affects human radio communications. ()

(5) The atmospheric layer in which various weather changes can be seen is ()

A. Troposphere B. stratosphere

C． Upper atmosphere D. ozone layer

The composition and vertical stratification of the atmosphere PPT, the third part of the content: cooperative exploration to overcome difficult problems

vertical stratification of the atmosphere

On January 11, 2019, China successfully launched China's latest communications and broadcast satellite "ChinaSat 2D" using the "Long March 3B" carrier rocket at the Xichang Satellite Launch Center. The satellite entered the predetermined orbit. The picture below is Schematic diagram of the vertical stratification of the atmosphere.

Question 1 (Regional Awareness) Is the troposphere thickness in the area where my country's Xichang Satellite Launch Center is located thicker or thinner than in eastern my country? Why?

Tip: Thinner. Because Xichang is located in the Western Sichuan Plateau region of my country, it has a higher altitude and lower temperature.

Question 2 (Comprehensive thinking) What are the characteristics of the temperature changes experienced by the "Long March 3B" transport rocket just after it leaves the ground and takes off?

Tip: When a rocket is launched and just leaves the ground, it is in the troposphere, and its temperature decreases as altitude increases.

Question 3 (Comprehensive thinking) What are the characteristics of the atmosphere in which the successfully launched "ChinaSat 2D" satellite operates in orbit?

Tip: The atmosphere you are in is the upper atmosphere, the density of the atmosphere is extremely small, and there are several ionized layers.

The composition of the atmosphere and vertical layering PPT, the fourth part of the content: Literacy reaches the standard and solid foundation

1. Among the following atmospheric components, the substances necessary for biological life-sustaining activities are ()

A. Oxygen b. Nitrogen

C． carbon dioxide d. ozone

A: Oxygen in the atmosphere is a necessary substance for humans and organisms to maintain life activities. ]

2. The main function of carbon dioxide in the atmosphere is ()

A. Regulate surface temperature B. maintain living things breathing

C． Protect life on earth D. Composition of living organisms

A: Carbon dioxide content is very small. It is not only the basic raw material for photosynthesis of green plants, but also has a thermal insulation effect on the earth. ]

3. Regarding the description of the content in the picture, the correct statement is ()

A. The vertical stratification of the atmosphere is based on changes in altitude, temperature and pressure

B． As altitude increases, the temperature becomes higher and the air pressure becomes lower.

C． At 20 kilometers above the ground, the air pressure drops to half that of the ground

D． The temperature range in the vertical direction of the troposphere is 20 ~ -60 ℃

4． The correct statement about the ① and ② layers of atmosphere in the picture is ()

A. ①The thickness of the atmosphere increases with increasing latitude

B． ②The layer heats up due to the absorption of ultraviolet rays by oxygen atoms.

C． ①The atmosphere has the closest relationship with human beings

D． ② Complex weather phenomena are not conducive to flying

3.D　4.C　Question 3. According to the temperature, density, motion and other characteristics of the atmosphere, the atmosphere is divided into the troposphere, stratosphere and upper atmosphere from bottom to top. The air temperature in the troposphere decreases with increasing altitude, and the air temperature in the stratosphere increases with increasing altitude. The air pressure value at 20 km is about 80, while that near the ground is about 1,000, which is not a half relationship. Question 4: The thickness of the troposphere is negatively correlated with latitude; the stratosphere heats up because ozone absorbs ultraviolet rays; the weather in the stratosphere is clear and the air mainly moves horizontally, which is conducive to flight. ]

Keywords: PPT courseware for high school geography required by the People's Education Press is available for free download, composition and vertical stratification of the atmosphere PPT download, atmosphere on Earth PPT download, .PPT format;

For more information about the "Earth's Atmosphere Composition and Vertical Stratification of the Atmosphere" PPT courseware, please click the Earth's Atmosphere ppt Atmosphere Composition and Vertical Stratification ppt tag.

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Update Time: 2024-07-03

This template belongs to Geography courseware People's Education Press High School Geography Compulsory Course 1 industry PPT template

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