The hazards of sandstorms are within 100 words! Hurry Hurry Hurry Can you give an answer in 30 minut

Houses collapsed, polluted the environment, fires, deaths of people and animals.

Do you still need to ask? Of course, it is not good for people's health, which leads to various diseases.

When a large number of cold and warm air masses meet, a front is formed, and a rainy weather is formed at its interface due to the different properties and densities of the cold and warm air masses.

If the cold air mass is strong, it actively moves in the direction of the warm air mass, which is called a cold front.

In the weather, the cold front is divided into a fast cold front and a slow cold front according to the speed of its movement. If the warm air before the cold front is dry and precipitation cannot form, a dust storm will occur.

Weather, sandstorms are a kind of fast-moving cold front Tianzhiji buried gas.

Generally, the cold front moves at a speed of 40 to 80 dry meters per hour, and if it is a strong front, it can move at a speed of up to 120 dry meters per hour.

There is a problem with this statement, first, the speed of a sandstorm can reach 80 kilometers per hour instead of 120 kilometers per hour, and second, the speed of a sandstorm is how many kilometers per hour, not how many kilometers per hour of a sandstorm.

It's a little too fast, no.

I read the book that says that the speed of a sandstorm is 80 kilometers per hour. Is 120 kmh too fast?

Generally, it can reach the level of this kind of cavity, because its impact is very large. And the overall damage of the socks is also very large, so it is necessary to judge in advance.

The western prairie, which was once covered with green grass and stretched as far as the eye can see, is now a place of flying sand and rocks.

Once upon a time, the grasslands were full of green grass and dense forests, and they were full of life. With the passage of time, with the development of human beings, there are more ...... of people who live by grazing on the grassland

In spring, tender grass is pulled out of the grassland, and young leaves grow to add infinite vitality to the grassland; In summer, the foliage becomes more dense, blocking out the scorching sun and bringing a touch of coolness to the savannah; In autumn, the weather gradually cools, and the fallen leaves like colorful butterflies fly in the air and fall into the soil, providing nourishment ...... for the growth of new leaves in the coming yearBut since the people on the steppe continued to graze and cut down trees, the prairie has changed. The herdsmen raised cattle, horses, and sheep on the grassland, and they fed on plants, constantly eating grass and leaves, and gradually the grass decreased a lot. The green vegetation has been severely damaged.

Instead of repenting, people have intensified. In the early morning, the horses, cows, and sheep were driven to the grassland, and they continued to graze, and from morning to evening, the horses, cows, and sheep became fat and strong. But have they thought about it?

Although so raised horses. Cows and sheep can buy a lot of money, and one day the grass will be eaten. Not only do the animals have no food to eat, but the loss of green vegetation can also cause a terrible sandstorm phenomenon that threatens their lives.

This, coupled with the fact that people are constantly cutting down trees, has made the forest full of scarves. Finally, the grass on the grassland was eaten, the trees were pitifully few, and the sandstorm came. The fierce wind blows up the sand on the ground, and the sky is full of flying sand and rocks, which can cause a series of lung diseases if people inhale it into their lungs.

The few trees were not only unable to resist the wind and sand, but were uprooted. People had to leave the prairie, which was once full of life and was destroyed.

People, be enlightened! Keep cutting down trees, and you're the ones who end up hurting. The earth needs green, and it craves green!

The causes of sandstorms are favorable for the weather situation that produces strong winds or strong winds, and favorable sandstorms and dust source distribution and favorable air instability conditions are the main reasons for the formation of sandstorms or strong sandstorms. Strong wind is the driving force of sandstorms, and the sources of sand and dust are the material basis of sandstorms, and unstable thermal conditions are conducive to the increase of wind and the development of strong convection, so as to entrain more sand and dust and roll higher. In addition, the drought and lack of rain in the early stage, the warming weather and the rising temperature are the special weather and climate background formed by sandstorms. The development of convective cells in front of the surface cold front into clouds or squall lines is a small and medium-scale system that is conducive to the development and strengthening of sand and dust storms. The topographic conditions that are conducive to the increase of wind speed, i.e., the narrow tube action, are one of the favorable conditions for the formation of sandstorms.

1.The hazards of sandstorms are strong winds and dust.

2.Its effects are mainly manifested in the following aspects: wind erosion of soil, destruction of vegetation, and burial of farmland.

3.Polluting the air.

4.Affect traffic.

5.The impact of sandstorms on traffic is mainly manifested in the following ways: First, the visibility is reduced and the take-off and landing of vehicles and aircraft are affected.

6.Second, sand and dust bury the roadbed and obstruct traffic.

7.Affect the use and production of precision instruments.

8.Endangering human health.

9.Cause weather and climate change.

Sandstorms are the most harmful to the human respiratory system, and the fine dust floating in the dust, especially small particles, is the easiest to inhale deep into the respiratory system. The strong wind makes the surface evaporate strongly, driving away a large amount of water, the humidity in the air is greatly reduced, the nasal mucosa is weakened due to dryness, it is easy to appear small cracks, the disease prevention function is reduced, and the germs in the air take advantage of the weakness. The others are the impact on production and life.

Keiko can infect a large number of livestock with respiratory and gastrointestinal diseases, and in severe cases, it can cause the death of a large number of "spring-haired" livestock, and scrape off the fertile soil, seeds, and seedlings of farmland. Complete property damage, inaccessibility. Sandstorm is a general term for sandstorms and sandstorms.

Gale is a dust storm that blows a large amount of sand particles into the air near the formation.

The intuitive feeling of sandstorm weather is that the air is cloudy, the horizontal field of view is less than 1 km, and the sky is usually yellow and red or dark gray. Sandstorm weather is a strong disastrous weather, which will not only cause poor environment, housing collapse, transportation and power supply interruption or interruption, fire, personnel and other losses. Sandstorms will cause serious losses and huge losses to the national economic construction and the safety of people's lives and property.

Dust storms are a natural phenomenon that has existed since the formation of the earth. The famous Loess Plateau is a masterpiece of sandstorms.

The changes in sandstorms and atmospheric circulation in northern China are the dominant factors, that is, the wind factor. This is something that humans cannot influence. We want to influence, but there's really no way around it.

Then there is the dusty **. Dust storms are landmark micro-sediments such as sand, dust, clay, etc. If the surface is covered with vast forests and other good plants, there will be no dust** and there will be no sandstorms.

The sandstorm stopped for a while, and the momentum of a comeback in the past two years has comeback. The worst period was more than 10 years ago, around 2000. Counting the number of sandstorms can be found to enter a strong regularity, activity duration, bottleneck period and another activity period.

It can be judged that the sandstorm is now entering a new round of active period. Global warming is also an influencing factor. It's not good to say that sandstorms are bad, but in fact, sandstorms are good.

Sandstorms are the natural enemies of smog. Dust storms can sweep away all the pollutants in the air. So the air will be fresh after a sandstorm.

Of course, after a while, the smog will return.

Sandstorms are the most harmful to the human respiratory system, and floating dust, especially small particles, are most likely to be inhaled into the deep part of the respiratory system. The strong wind evaporates the surface, drives away a lot of moisture, greatly reduces the humidity in the air, weakens the elasticity of the nasal mucosa due to dryness, easily causes small cracks, reduces the disease prevention function, and uses the germs in the air. The other is the impact on production and life.

Keiko infects a large number of livestock with respiratory and gastrointestinal diseases. In severe cases, it can lead to the death of a large number of "spring hair" livestock, and the fertile soil, seeds and seedlings of the farmland will be scraped off. The property was completely damaged and inaccessible.

Sandstorm is a general term for sandstorms and sandstorms. Gale is a type of sandstorm that blows a large amount of sand into the air near the formation.

Dust storms are very harmful to humans and are caused by the destruction of the environment. Such a disaster will be triggered by the large-scale felling of trees by humans and the destruction of the ecology.

Beijing has the world's largest sandstorm pollution