High school geography knowledge, high school geography knowledge points

It's not that there isn't, but not for the time being.

It's so long to grow, no one can say.

The tectonic plate is the one that divides the whole planet.

Plates have land and oceans.

The oceanic plate cannot be understood by its name alone.

The oceanic plate includes his land plate.

1. Plates: The lithosphere is like an eggshell, but not a complete eggshell, but a broken eggshell. You can't move the whole eggshell, right, but you can move every small piece of the broken eggshell, and these broken pieces are like plates.

2. Growth boundary: just like two small planks stuck together submerged in water, once the two planks are separated to both sides, the gap between them is immediately filled by water - the plate opening zone is easy to form an ocean; And you** were cut by a knife, did blood gush out of the knife? Just like plate splitting (growth boundary), there will be magmatic activity, and if it is on the ocean floor, the magma erupts and cools down to form volcanic islands.

3. Between the oceanic plate and the continental plate: there is no relationship between the upper and lower plates, but when the oceanic plate and the continental plate squeeze each other, the continental plate is like a thick book, and the oceanic plate is like a thick cardboard.

1. The level of the celestial system: total galaxy - Milky Way (extragalactic galaxy) - solar system - Earth-Moon system.

2. The conditions for the existence of life on Earth.

Stable solar light conditions.

Relatively safe cosmic environment.

Because the distance between the sun and the earth is moderate, the surface temperature is suitable (the average temperature is 15 degrees).

Because of the Earth's moderate mass and volume, the Earth can attract the atmosphere to form an atmosphere (mainly nitrogen and oxygen).

Formation and presence of liquid water.

3. The impact of solar activity on the earth:

1) Signs of solar activity: sunspots, flares.

2) Impact: Affect the ionosphere and interfere with radio shortwave communications;

the phenomenon of "magnetic storm" and "aurora" is generated;

Affects the Earth's climate.

4. The geographical significance of the rotation of the earth:

Alternation of day and night: the dividing line between the day and night hemispheres - the morning and dusk line (circle) - the time of the intersection with the equator is 6 o'clock and 18 o'clock respectively - the height of the sun is 0 degrees - the plane on which the morning and dusk circle is located is perpendicular to the sun's rays;

Local time difference: morning in the east and evening in the west, longitude varies by 1 hour every 15 degrees.

Geostrophic deflection force: no deviation on the equator, right deviation in the northern hemisphere, left deviation in the southern hemisphere. The deflection force increases with latitude.

5. The geographical significance of the revolution of the earth:

1) Change in the length of day and night:

In the summer half of the Northern Hemisphere, the sun shines directly on the Northern Hemisphere, and the days and nights are short at all latitudes in the Northern Hemisphere, and the higher the latitude, the longer the days and the shorter the nights. On the summer solstice, the day length at all latitudes in the Northern Hemisphere reaches its maximum of the year, and the polar day phenomenon occurs in the Arctic Circle and the areas north of it.

In the winter half of the northern hemisphere, the sun shines directly on the southern hemisphere, and the nights are longer and the days are shorter at all latitudes in the northern hemisphere. On the winter solstice, day lengths at all latitudes in the Northern Hemisphere reach their lowest values of the year, and polar nights occur in the Arctic Circle and areas north of it.

On the day of the vernal and autumnal equinoxes, the sun shines directly on the equator, and the length of day and night is equal to 12 hours each around the world.

The equator equinoxes day and night throughout the year. The situation in the southern hemisphere is the opposite of that in the northern hemisphere.

The role of wetlands.

1. Material production function.

Wetlands have a strong material production function, and they contain abundant animal and plant resources.

2. Atmospheric composition adjustment function.

The abundant plant community in the wetland can absorb a large amount of carbon dioxide gas and release oxygen, and some plants in the wetland also have the function of absorbing harmful gases in the air and can effectively regulate the composition of the atmosphere. At the same time, it is important to note that wetland habitats also emit greenhouse gases such as methane and ammonia.

3. Water regulation function.

Wetlands play an important role in water storage, regulating river runoff, replenishing groundwater and maintaining regional water balance, and are the natural "sponges" for water storage and flood control.

4. Purification function.

Swampy wetlands act like natural filters that help to slow down the flow of water as it passes through wetlands containing toxins and impurities (pesticides, domestic sewage and industrial effluents), which facilitates the sedimentation and removal of toxins and impurities. Some wetland plants can effectively absorb toxic substances in the water and purify the water.

5. Provide animal habitat functions.

6. Adjust the local microclimate.

The wetland water is evaporated into water vapor, and then in the form of precipitation to the surrounding areas, maintaining local humidity and rainfall, making Ninghe County one of the wetter areas in Tianjin.

High School Geography (People's Education Edition) Compulsory 1 Review Knowledge Points.

Chapter 1: Planet Earth.

1. The Earth in the Universe.

Studying geography is not going to work.