Are all floating clouds formed by water vapor, except in the heavens and on the earth?

Yes. Because water vapor is a part of the air and is ubiquitous, there is water vapor in the sky and on the earth, and when water vapor accumulates too much in the sky, it will form clouds.

Yes, this generates an indicator called the humidity of the air, which describes water vapor, which is almost everywhere.

Floating clouds are formed by water vapor, in addition to the sky and the earth, that is, our more common fog, most of them appear in clear nights or early mornings, in general, we should pay attention to travel safety.

When the small water droplets in the cloud continue to collide to form large water droplets, so that the weight cannot make them float in the air, it will form rain falling, and it will become rain when it falls, and it cannot be solidified into clouds, so that clouds can only exist in the sky.

1. Clouds float slowly in the air like flocks of docile sheep.

2. The clouds are like soft marshmallows, floating sweetly in the air.

3. The clouds float in the air melodiously like pieces of flaming red flags.

4. The clouds float softly in the air like orange-red silk scarves.

5. Clouds float in the air like plum blossoms.

There are often white clouds floating in the sky, these white clouds are formed by water vapor, and when it is cold, it will form water droplets or snowflakes, hail, etc. to fall, which shows that clouds also have its weight, some people calculate that a cubic kilometer of clouds contains about 500 tons of water vapor, and it is obvious that the clouds are denser than the air.

From the ground, a cubic kilometer of clouds is not very large, because the height of the clouds is more than 1,000 meters, and some clouds are even more than 5,000 meters. And when cloudy weather appears, such clouds can be said to abound, it can be said that as far as the eye can see, millions of tons of clouds are floating in the sky, why don't clouds of such weight fall? Why do you have to turn into raindrops, snowflakes or hail before they fall to the ground?

In fact, the main reason is that the water vapor particles in the clouds are too small, and the calculation finds that the raindrops with a diameter of about one centimeter fall at a speed of about one meter per second without wind in the air, and the raindrops of drizzle with a diameter of about 1 millimeter fall at a speed of one meter per second without wind in the air, and the speed of the small fog-like water droplets with a diameter of about one millimeter is only about 1 centimeter per second without wind.

Most of the water vapor in the clouds are small fog-like water droplets, some of which are Xiaoice crystals of the same size, and it stands to reason that they will also fall to the ground in a windless state, but due to the transpiration of the ground and the influence of wind, the clouds will not sink to the ground, because the temperature of the earth is higher on the surface, and the temperature in the air is lower.

<> However, when the rainfall conditions appear, the fog-like small water droplets in the clouds will become larger and larger under the collision with each other, thus forming larger raindrops, and they can overcome the evapotranspiration of the air and fall to the ground, if the temperature in the air is particularly low, these small water droplets will become snowflakes and hail, the weight of snowflakes is lighter, the surface area is larger, so the speed of landing is relatively slow, and the weight of hail is larger, and the speed of landing is relatively fast.

Because the Earth's gravitational pull is so strong that it attracts water vapor, and the Sun is so far away from the Earth, the Sun doesn't let the clouds disappear.

In the upper air, the temperature is relatively low, so the water vapor condenses into small water droplets to form clouds, and the temperature of the sunlight is not enough for these water vapors to evaporate completely. So the clouds don't go away.

Because the accumulation of water vapor in the air is affected by the earth's gravity and does not fly into space, it can only float in a specific area where its mass can be separated from the ground, and the solar heat energy cannot ignite the water molecules in the air, so it can only float and accumulate because of the decline in gravity.

It is not light, it is very heavy, because compared with the high altitude, the temperature of the surface is significantly higher, and the hot air will flow from the bottom up, so the transpiration from the ground gives the auspicious clouds a lifting force, and under the influence of the wind, the clouds can avoid settling to the ground.

Clouds are not light, mainly because their density is lower than the average density of the air, which is why they float in the sky.

It is not because the clouds are very light, the clouds are very heavy, the reason why they can float in the air is because the hot air will flow from the bottom to the top, and the transpiration of the ground gives the clouds a lifting power, plus the influence of the wind, the clouds can avoid settling to the ground.

As the air rises, the temperature drops, and the water vapor in it (condensed) forms countless small droplets, (floating, floating) floating in the air, turning into clouds.

As the water vapor rises, the temperature of the air becomes lower, causing the water vapor to release heat and liquefy to form small water droplets. In winter, the water vapor cools down dramatically in the cold air, and then condenses into Xiaoice crystals, Xiaoice which gather and become snowflakes that fall to the earth

Therefore, the answer is: liquefaction before Qi; Ninghua

Liquefaction refers to the process of changing a substance from a gaseous state to a liquid state. There are two ways to achieve liquefaction, one is to reduce the temperature, and the other is to compress the volume. The critical temperature is the maximum temperature at which a gas can liquefy.

Because usually the volume of gas liquefaction will become one thousandth of the original, which is convenient for storage and transportation, so in reality, some gases (such as ammonia and natural gas) are usually liquefied, because the critical point of these two gases is higher, so it can become liquid under pressure at room temperature, and the critical point of some other cracking gases such as hydrogen and nitrogen is very low, and deep cooling must be carried out while pressurizing, which is called liquefaction.

Summer: popsicles are white, air conditioners are white, refrigerators are white.

Winter: White gas from the well Fog in the morning in winter Exhalation of white air in winter White gas on the lake surface in winter.

Daily: White gas comes out from under the launch tower when the rocket is launched, white gas comes out from the pot for stir-frying, white gas comes out from boiling water.

What or something is very light and can float in the air, which forms the clouds as follows:

Small water droplets or Xiaoice crystals are so light that they can float in the air to form clouds. Depending on the amount of clouds, the weather can be classified as sunny, cloudy, and overcast. Large clouds are likely to rain, and fibrous feathery clouds often appear on sunny days.

So the answer is: small droplets; Xiaoice Crystal; Clear; Cloudy; Yin.

Expanding: Clouds are small water droplets or small Xiaoice crystals formed by the liquefaction of water vapor in the atmosphere when cold, and the mixture is composed of visible polymers floating in the air.

Clouds are the tangible result of the vast water cycle on Earth. When the sun shines on the Earth's surface, water evaporates to form water vapor, and once the water vapor is supersaturated, water molecules collect around fine dust in the air (condensation), and the resulting water droplets or ice crystals scatter sunlight in all directions, which gives the appearance of clouds. In addition, clouds can form various shapes, and they are divided into many types due to the different heights and shapes in the sky.

Clouds absorb the heat emitted from the ground and reverse radiate it back to the ground, which helps keep the earth warm. But the clouds also reflect sunlight directly back into space, which has a cooling effect. Which effect prevails depends on the shape and position of the cloud.

In this layer of the atmosphere from the ground upwards, the closer to the ground, the higher the temperature and the more abundant the air; The higher you go, the cooler the temperature and the thinner the air.

Hello! Water evaporation on land and sea reaches the atmosphere, and there are many tiny particles in the air, which can act as condensation nuclei for water vapor, causing the surrounding water vapor to gather around it, so that clouds are formed. When the weight of the cloud exceeds the buoyancy of the atmosphere, it will come down, which is rain.

So the formation and landing of clouds is essentially the conversion of water from liquid to gaseous states.

Clouds are the phenomenon of water vapor in the atmosphere condensing into ice crystals or small water droplets (cloud droplets) suspended in the air. The reason for the suspension is due to the effect of updraft.

The atmosphere contains water vapor, and the capacity of the atmosphere to contain water vapor increases exponentially with the increase of temperature. When the temperature drops, excess water vapor condenses due to the reduced ability to contain water, or is suspended in the air (high is cloud, low is fog), or condenses on the surface of objects (such as plant leaves, called dew, dew). When the temperature is below freezing, ice crystals and frost will form.

The relationship between the size of cloud droplets and raindrops is that 1 million cloud droplets can form a raindrop, which shows the small size of cloud droplets. These small water droplets reflect sunlight and are opaque, giving the clouds a white appearance. If the height of condensation is near the ground, fog is formed. Fog and clouds are just different in height.

Conditions for the formation of clouds:

1. Water vapor conditions: The atmosphere contains a certain amount of water vapor.

2. Rising cooling conditions: the upward movement of the weather system, the convective movement of surface thermal heating, the uplift of the windward slope of the mountain range, etc.

The clouds are in the sky, so the "white clouds" are the images formed in the water, that is, the image of the plane mirror, so the white clouds floating in the water are formed by the reflection of light and the virtual image of the object

Because the fish is an actual object in the water, because the light rays are refracted from the water through the air into the human eye, when we see the fish in the water, we actually see the virtual image of the fish, which is formed by the refraction of light

So the answer is: the reflection of light; Refraction; Virtual

As the saying goes, clouds floating in the sky are made up of many tiny water droplets or ice crystals, and some are made up of small water droplets or Xiaoice crystals mixed together. The appearance of animals is caused by the wind, climate, and various factors at that time.

In fact, everyone is the same principle and material, and there will be no big difference.

We all know that in this layer of the atmosphere more than ten kilometers from the ground, the closer to the ground, the higher the temperature and the denser the air; The higher you go, the cooler the temperature and the thinner the air.

On the other hand, the water surface of rivers, lakes and seas, as well as the water of soil, animals and plants, evaporates into the air at any time and becomes water vapor. When water vapour enters the atmosphere, it becomes clouds that cause rain, or condenses into frost and dew, and then returns to the ground, seeping into the soil or flowing into rivers, lakes and seas. Later, it evaporates (sublimation) again, and then condenses (condensation) and declines.

The cycle goes on and on.

After the water vapor enters the lower atmosphere from the evaporation surface, the temperature here is high, and the water vapor contained is more, and if this hot and humid air is lifted, the temperature will gradually decrease, and at a certain height, the water vapor in the air will reach saturation. If the air continues to be lifted, excess water vapor will be precipitated. If the temperature there is higher than 0°C, the excess water vapor condenses into small droplets; If the temperature is below 0 °C, the excess water vapor condenses into Xiaoice crystals.

When these small water droplets and Xiaoice crystals gradually increase and reach the level that the human eye can recognize, they are all kinds of clouds.

Of course, it's better to be an old product!