What do you mean by dust?

Dust refers to a weather phenomenon that strong winds roll up a lot of dust from the ground, which makes the air turbid and the horizontal visibility drops obviously. Mainly divided into floating dust, sand blowing, sandstorm and strong sandstorm.

Generally speaking, sandstorm refers to a storm that carries a lot of dust, mostly in desert or semi-arid areas. However, there are strict indicators for sandstorms in the scientific sense. In meteorology, visibility is generally used to distinguish sandstorms from sandstorms: sandstorms with visibility less than 1 km, and sandstorms or sandstorms with visibility greater than 1 km.

Dust can cause house collapse, traffic power supply blocked or interrupted, fire, casualties, etc., pollute the natural environment, destroy crop growth, and cause serious losses and great harm to national economic construction and people's lives and property safety.

Make sentences:

1, Weichang County, Hebei Province is located in the sandstorm source control area of Beijing and Tianjin, and the forest has become a green barrier against sandstorms in Beijing and Tianjin.

2. The sandstorm from the Negev desert roared by, making the wind chimes wail overhead.

3. In a short time, I saw a thick dust fog rising in the distance, sweeping towards the village like a sandstorm.

4. There was the sound of hooves in the distance, and behind the road, a cloud of dust was raised, revealing a group of dark shadows. Blink of an eye, those shadows rushed out of the dust.

5, this is an endless desert, countless sandstorms rolled up the yellow sand all over the sky, covering the sky! When I was a child, the sandstorm suddenly stopped, time seemed to stop, and the sand floating in the air seemed to solidify.