How do the clouds in the sky move?
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Wind. \n\nHow simple was that?
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What do you mean "caught up with"? All clouds rotate at the same rate as the Earth. If that weren't the case the clouds would rise and set once a day just like the sun or the stars.
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What are clouds?\nA cloud is a large collection of very tiny droplets of water or ice crystals. The droplets are so small and light that they can float in the air. \n\nHow are clouds formed?\nAll air contains water, but near the ground it is usually in the form of an invisible gas called water vapor. When warm air rises, it expands and cools. Cool air can't hold as much water vapor as warm air, so some of the vapor condenses onto tiny pieces of dust that are floating in the air and forms a tiny droplet around each dust particle. When billions of these droplets come together they become a visible cloud. \n\nWhy are clouds white?\nClouds are white because they reflect the light of the sun. Light is made up of colors of the rainbow and when you add them all together you get white. The sun appears a yellow color because it sends out more yellow light than any other color. Clouds reflect all the colors the exact same amount so they look white.\n\nWhy do clouds turn gray?\nClouds are made up of tiny water droplets or ice crystals, usually a mixture of both. The water and ice scatter all light, making clouds appear white. If the clouds get thick enough or high enough all the light above does not make it through, hence the gray or dark look. Also, if there are lots of other clouds around, their shadow can add to the gray or multicolored gray appearance.\n \nWhy do clouds float?\nA cloud forms when air heated by the sun. As it rises, it slowly cools it reaches the saturation point and water condenses, forming a cloud. As long as the cloud and the air that its made of is warmer than the outside air around it, it floats!\n\nHow do clouds move?\nClouds move with the wind. High cirrus clouds are pushed along by the jet stream, sometimes traveling at more than 100 miles-per-hour. When clouds are part of a thunderstorm they usually travel at 30 to 40
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Clouds are flat on the bottom because of the condensation level. There is a point as you climb in altitude (not always the same) where the moist rising air reaches the dew point (saturation point) and condenses onto tiny particulate matter in the air. It's nearly flat looking because of the temperature change as you climb is nearly parallel to the ground. Sort of even. Not quite.
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sun rays passing though clouds
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A cumulonimbus cloud forms in rising air (updraft).  The air cools as it rises, and at a certain point the water vapor in the air condenses into water droplets, forming a cloud.  Around a large Cb there is often downdraft - the air gets warmer as it subsides, and any water droplets (=clouds) will evaporate.
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We can not control clouds but we can diver the direction of which it passes.  By using bombs and other chemicals it is possible.  It is used where agriculture lands are dried due to lack of rains.
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You can see clouds because clouds aren't gases.  They're condensed water droplets and ice crystals that aren't big enough to fall to the ground.  If clouds were actually made of water vapor, you couldn't see them.  Steam isn't completely gaseous, which is why you can still see it.  Smoke is visible because it's not a gas either, it's a colloid; it's a solution of solid particles in air.
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We have air around us. The atmosphere has high preasure and low preasure. When the high preasure area turns into low preasure, the air moves from high preasure area towards the low preasure. This movement of air from one area to another causes the wind. \n\nIt has nothing to do with clouds. The faster the low preasure area is formed, depends on whether you have clouds, or thunderstorms. Low preasure areas causes rain. This is why normally you have winds before the rain.
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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,
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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.
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This has to do w/ the way it forms in clouds.\n\nAs warm moist air rises, it will expand & cool. When it reaches the dew point, it will condense on particulates in the air such as pollen, dust, salts, pollution, etc. This is the formation of a cloud.\n\nThe condensation nuclei described above is the primary source for the shape of the raindrop that may eventually form from the cloud.\n\nAs the water droplets bump into each other, they will begin to stick, growing larger & larger.\n\nWhen wind currents can no longer hold up the droplets, gravity wins the tug-of-war & the droplet will fall.\n\nSome people mistakenly believe that raindrops are "teardrop" shaped. This is not true. They are spherical as they fall through the atmosphere. That is until they hit something.
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Wind speed is never zero.  It seems like it somedays, but higher up it is windy. Just look at the clouds.
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wikipedia.com\n\n\nA cloud is a visible mass of condensed droplets or ice crystals suspended in the atmosphere above the surface of the Earth or another planetary body. The branch of meteorology that studies clouds is nephology.\n\nOn Earth, the condensing substance is water vapor, which forms small droplets of water (typically 0.01 mm of ice crystals) that, when surrounded with billions of other droplets or crystals, are visible as clouds. Clouds reflect all visible wavelengths of light equally and are usually white, but they can appear grey or even black if they are so thick or dense that sunlight cannot pass through.\nContents\n[hide]\n\n    * 1 Cloud formation and properties\n          o 1.1 "Hot Ice" and "Ice Memory" in cloud formation\n    * 2 Cloud classification\n          o 2.1 High clouds (Family A)\n          o 2.2 Middle clouds (Family B)\n          o 2.3 Low clouds (Family C)\n          o 2.4 Vertical clouds (Family D)\n          o 2.5 Other clouds\n          o 2.6 Cloud fields\n    * 3 Colors of clouds\n    * 4 Global dimming\n    * 5 Global brightening\n    * 6 Clouds on other planets\n    * 7 See also\n    * 8 External links\n\n[edit]\n\nCloud formation and properties\nA variety of cloud formations.\nEnlarge\nA variety of cloud formations.\nGlobal scheme of cloud optical thickness.\nEnlarge\nGlobal scheme of cloud optical thickness.\n\nClouds 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\n    * along warm and cold fronts (frontal lift),\n    * where air flows up the side of a mountain and cools as it rises higher into the atmosphere (orographic lift),\n    * by the convection caused by the warming of a surface by insolation (diurnal heating),\n    * when warm air blows over a colder surface such as a cool body of water.\n\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 the relatively warm air holding the droplets is low enough that air currents below and within the cloud are capable of keep it 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.\nCumulonimbus cloud\nEnlarge\nCumulonimbus 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 f
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Both. The rotation of the earth causes storms (and your the water in your toilet) to spin in one direction depending on what hemisphere of the earth you live on.  Wind can also make clouds if blown up a mountain face by forcing warmer air into colder mountain air and thus creating clouds. These clouds form on the windward side of the mountain, and are pushed over the top of the mountain (by the wind) and then disappear on the leeward side of the mountain when the cooler air reaches the lower elevation warmer air.
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Well you see, not all clouds are the same: Here are some different types of clouds, that don't rain at all.\n\nCirrus Clouds\nCirrus clouds are the most common of the high clouds. They are composed of ice and are thin, wispy clouds blown in high winds into long streamers. Cirrus clouds are usually white and predict fair to pleasant weather. By watching the movement of cirrus clouds you can tell from which direction weather is approaching. When you see cirrus clouds, it usually indicates that a change in the weather will occur within 24 hours.\n\n\nCirrostratus clouds are thin, sheetlike high clouds that often cover the entire sky. They are so thin that the sun and moon can be seen through them. Cirrostratus clouds usually come 12-24 hours before a rain or snow storm.\n\n\nCirrocumulus clouds appear as small, rounded white puffs that appear in long rows. The small ripples in the cirrocumulus clouds sometime resemble the scales of a fish. Cirrocumulus clouds are usually seen in the winter and indicate fair, but cold weather. In tropical regions, they may indicate an approaching hurricane.\n\n\n"Alto" Clouds\nAltostratus clouds are gray or blue-gray mid level clouds composed of ice crystals and water droplets. The clouds usually cover the entire sky. In the thinner areas of the clouds, the sun may be dimly visible as a round disk. Altostratus clouds often form ahead of storms with continuous rain or snow.\n \n\nAltocumulus clouds are mid level clouds that are made of water droplets and appear as gray puffy masses. They usually form in groups. If you see altocumulus clouds on a warm, sticky morning, be prepared to see thunderstorms late in the afternoon.\n\n\nStratus Clouds\nStratus clouds are uniform grayish clouds that often cover the entire sky. They resemble fog that doesn't reach the ground. Light mist or drizzle sometimes falls out of these clouds.\n \n\nStratocumulus clouds are low, puffy and gray. Most form in rows with blue sky visible in between them. Rain rarely occurs with stratocumulus clouds, however, they can turn into nimbostratus clouds.\n\n\nNimbostratus clouds form a dark gray, wet looking cloudy layer associated with continuously falling rain or snow. They often produce precipitation that is usually light to moderate.\n\n\nCumulus Clouds\nCumulus clouds are white, puffy clouds that look like pieces of floating cotton. Cumulus clouds are often called "fair-weather clouds". The base of each cloud it flat and the top of each cloud has rounded towers. When the top of the cumulus clouds resemble the head of a cauliflower, it is called cumulus congestus or towering cumulus. These clouds grow upward and they can develop into giant cumulonimbus clouds, which are thunderstorm clouds.\n\n\nCumulonimbus clouds are thunderstorm clouds. High winds can flatten the top of the cloud into an anvil-like shape. Cumulonimbus clouds are associated with heavy rain, snow, hail, lightning and even tornadoes. The anvil usually points in the direction the storm is moving.\n \n\nSpecial Clouds\nMammatus clouds are low hanging bulges that droop from cumulonimbus clouds. Mammatus clouds are usually associated with severe weather.\n\n\nLenticular clouds are caused by a wave wind pattern created by the mountains. They look like discs or flying saucers that form near mountains.\n\n\nFog is a cloud on the ground. It is composed of billions of tiny water droplets floating in the air. Fog exists if the atmospheric visibility near the Earth's surface is reduced to 1 kilometer or less.\n\nContrails are condensation trails left behind jet aircrafts. Contrails form when hot humid air from jet exhaust mixes with environmental air of low vapor pressure and low temperature. The mixing is a result of turbulence generated by the engine exhaust.\n\nhope this helps :-).
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The atmosphere is made up of several layers,each one with a varying density.Thus,the speed of light differs in different layers of the atmosphere and the light gets refracted(deviated from its path when it travels from one medium to another)when passing from one layer of atmosphere to another.Due to this refraction of light in the different layers of the atrmosphere,stars appear to twinkle