Where did the cloud start ?
814547
did you mean how do clouds form?\n\nIf so, they form from water evaporating on the surface of the earth. As the vapour rises, it reaches cooler, higher areas of the atmosphere and the vapour begins to condense, around microscopic particles in the air. Once this process has started, other molecules will start to join in, until the vapour condenses and clumps together. When enough forms, it is no longer lighter than air, and rain will occur.
36446
A cloud is a visible body of very fine water droplets or ice particles suspended in the atmosphere at altitudes ranging up to several miles above sea level.
186119
rain comes from clouds. clouds are actually water vapour floating in air. when they become really condensed due to a drop in temperature then they form large drop of water which cant stay afloat and so rain happens.
1084848
Are you for real? Do you really think the clouds can be on the other side of the sun? The sun is 93 million miles away. Our atmosphere ends, for all practical purposes 150 or so miles up. After that is outer space. Clouds do not exist outside of the atmosphere. \nNow just maybe this is a trick question and you are meaning nebular clouds or clouds around other planets. If so then yes there are always clouds on the other side of the sun.
289645
clouds would be very pretty
150463
There are a couple of reasons that work together to explain this situation. The first one has to do with how raindrops form. \n\nNow, it may seem silly to make such an obvious statement as, "Rain always falls from clouds." But once it has been said, we can then ask, "What is going on inside those clouds?" And that question leads us to plenty of relevant information! \n\nDo you remember the last time your local weather was described as being "hot and humid"? Do you remember what it FELT like? Do you also remember what the air LOOKED like? The reason I am asking these questions is because it is important to know that ordinary water is commonly found in one of three forms: solid, liquid, or gas. The liquid form is what we call "water", while the solid form we call "ice", and the gas form we call "water vapor". Water vapor is colorless, odorless, and invisible. But you sure can FEEL it on a hot and humid day! \n\nNext, do you remember the last time you encountered some fog? Think about what IT looked like. If you looked real close, you would have seen zillions of tiny tiny droplets of water floating in the air. And, if you remember the last time you saw some steam, you might think that it looked just like fog (except it was hotter). Steam is NOT pure water vapor! \n\nWell, it happens that the description, "zillions of tiny tiny droplets of water floating in the air", applies to every fog, to every mist, to every burst of steam -- and to every cloud in the sky. If you sit back and simply watch the clouds for a while, you will see that some clouds grow, some shrink, and some do nothing but move across the sky. What is happening to the growing or shrinking clouds? When a cloud grows, water vapor in the air gradually "condenses" to form lots more tiny tiny droplets. When a cloud shrinks, many droplets are completely "evaporating" to become invisible water vapor. \n\nAs the winds move air across the sky, carrying clouds along, fragments of wind known as "eddys" can do strange things to the shapes of clouds. A common game is to study a cloud's shape and guess what it looks like. Also, winds from different directions can collide with each other, which often has great effects upon clouds. It depends on how cold or warm the colliding winds are, and how much water each wind carries (only the differences matter, not whether the water is in the form of vapor or tiny drops). \n\nFor rain to happen, the weather conditions inside the clouds, and surrounding them, has to cause the droplets to grow. Some droplets will grow by colliding and combining with each other -- just what you Asked about. Some droplets will grow by acquiring more and more water vapor from the air. Some will do both. But the important thing to remember now is that MOST of the droplets in the clouds grow at the same time! \n\nBUT, the droplets do not all grow at the same rate; some grow faster than others. As soon as ANY get big enough, they start to fall out of the cloud. Water is heavier than air, after all. Depending on the wind conditions, those first raindrops might be blown back up into the cloud, where they can grow some more. Eventually, however, they get too big to stay up in the air, so they fall all the way to the ground. And the slower-growing droplets will fall after them, and the slower-growing-yet droplets will fall after THEM, and so on. This is the essence of the raining process. \n\nAs I said at the start, there are a couple of reasons why the raindrops don't combine to make a single stream. The first reason is simply that raindrops start falling just as soon as they are too heavy to stay in the air. The second reason is that they are all falling together DOWNWARDS, not sideways. If the wind blows them sideways, they all move TOGETHER sideways. That isn't good enough to cause them to meet each other, while falling, so they could combine to form a si
751012
Clouds are formed essentially by water vapours.The uppermost layer of waterbodies like sea,river,ponds etc(specially sea) are in the process of evaporation always.now water vapour is a gas and due to the fa that the surface of the waterbodies and the earth is hotter,the watervapour expands its volume.As you must be knowing density of an object is its mass divided by volume.Mass being constant,if volume increases density decreases and the water-vapour getting lighter goes up.There the temperature being less ,the water vapour condenses into water-droplets and floats as clouds,
601596
Clouds form when the invisible water vapor in the air condenses into visible water droplets or ice crystals. This can happen in three ways.\n\n1. The air is cooled below its saturation point. This happens when the air comes in contact with a cold surface or a surface that is cooling by radiation, or the air is cooled by adiabatic expansion (rising). This can happen\n\nalong warm and cold fronts (frontal lift), \nwhere air flows up the side of a mountain and cools as it rises higher into the atmosphere (orographic lift), \nby the convection caused by the warming of a surface by insolation (diurnal heating), \nwhen warm air blows over a colder surface such as a cool body of water. \n2. Clouds can be formed when two air masses below saturation point mix. Examples are breath on a cold day, aircraft contrails, and Arctic sea smoke.\n\n3. The air stays the same temperature but absorbs more water vapor into it until it reaches saturation.\n\nThe water in a typical cloud can have a mass of up to several million tonnes. However the volume of a cloud is correspondingly high, and the net density of water vapor is actually low enough that air currents below and within the cloud are capable of keeping small droplets suspended. As well, conditions inside a cloud are not static: water droplets are constantly forming and re-evaporating. A typical cloud droplet has a radius on the order of 1 x 10-5 m and a terminal velocity of about 1-2 cm/s. This give these droplets plenty of time to re-evaporate as they fall into in the warmer air beneath the cloud.\n\nMost water droplets are formed when water vapor condenses around a condensation nucleus, a tiny particle of smoke, dust, ash, or salt. In supersaturated conditions, water droplets may act as condensation nuclei.\n\nWater droplets large enough to fall to the ground are produced in two ways. The most important is through the Bergeron Process, theorized by Tor Bergeron, in which supercooled water droplets and ice crystals in a cloud interact to produce the rapid growth of ice crystals, which precipitate from the cloud and melt as they fall. This process typically takes place in clouds with tops cooler than -15°C. The second most important process is the collision and wake capture process, occurring in clouds with warmer tops, in which the collision of rising and falling water droplets produces larger and larger droplets, which are eventually heavy enough to overcome air currents in the cloud and the updraft beneath it and fall as rain. As a droplet falls through the smaller droplets which surround it, it produces a "wake" which draws some of the smaller droplets into collisions, thus perpetuating the process. This method of raindrop production is the primary mechanism in low stratiform clouds and small cumulus clouds in trade winds and tropical regions, and produces raindrops of several millimeters diameter.\n\n \nThis wave cloud pattern formed off of the Île Amsterdam in the far southern Indian Ocean.The actual form of cloud created depends on the strength of the uplift and on air stability. In unstable conditions convection dominates, creating vertically developed clouds. Stable air produces horizontally homogeneous clouds. Frontal uplift creates various cloud forms depending on the composition of the front (ana-type or kata-type warm or cold front). Orographic uplift also creates variable cloud forms depending on air stability, although cap cloud and wave clouds are specific to orographic clouds.
540512
In the clouds as water vapor.
606380
Clouds are tiny droplets of water that have condensed on condensation nuclei such as pollen, dust, ash, & pollution in the troposphere.\n\nB/c they are very tiny and independant of each other, they tend to be suspended. This is due to various things such as updrafts, winds, etc. They are very lightweight. Only when they begin to start growing in size will gravity take over & they start to fall as rain.
18597
To save you some time, here is a great description in plain English:\n\nIt all begins when bitter cold air dives across the Great Lakes. As the cold air flows over the warm water, the relatively warm lake water heats the air's bottom layer as lake moisture evaporates into the cold air.\n\nSince warm air is lighter - less dense - than cold air, the heated air rises and begins to cool.\n\nAs the air cools, the moisture that evaporated into it condenses and forms clouds, and snow begins falling from the cloud if the air is humid enough.\n\nThe wind pushes the clouds over the land. As this happens, friction with the ground, which is greater than the friction between the lake's water and the moving air, slows the winds. This causes the air that's carrying the clouds to "pile up" - meteorologists call this "convergence."\n\nConvergence increases the amount of snow that's falling on the land compared with the amount falling on the lake.\n\nAs the wind continues inland it runs into hills, sometimes only a few miles from the lake, which forces the air to rise, which cools it. As the air cools, more humidity condenses to create even more snow. This is why the heaviest lake effect snow falls on hills inland from the great lakes. \n\nThe source also has an outstanding graphic depiction and explanation.
495263
Because the air closer to the earth isn't always at the correct temperature and humidity level to create clouds.
1116707
droplets of water that condense on what are called condensation nuclei...which are small particles of matter that are suspended in the atmosphere (sand, sea salt, dirt etc)\n\nwhen the air temperature and dewpoint (the temperature the air needs to be to be "saturated") meet, the air condenses into a liquid form, which then attaches itself to the condensation nuclei....which in turn..gives you your cloud.
502136
Actually, it is the rotation of the earth that causes weather and then clouds.\nThe clouds move across the sky as a result of differences in heat between regions. All of the matter around the earth is held to it by gravity. However, clouds "float" in air. So they will move at slightly different speeds. \n\nEver watch when they stir a milkshake? the different colors all swirl similarly.
419265
Outerspace begins when the thermosphere ends. There is no definite beginning to outer space, the atmosphere just blends into outer space about 550km above the Earth.\n\nHope this helps
250986
the place where the glaciers originate from.
722697
The shape is completely random, based on how air currents (wind and updrafts) are moving around and inside the cloud. You get so many cloud shapes over time that a few random patterns are bound to resemble something else we're familiar with, such as a heart or a dog.