Hello everyone! In this blog is about mountain waterfall… 

Water does not exist naturally on Earth. All water is produced by the decomposition of carbon dioxide, the same chemical compound that plants use during photosynthesis. Since this process happens at high elevations, there was no water present below those elevations on Earth's surface. When the oceans evaporated, this resulted in a thin layer of water above the mountains. As time passed, the atmosphere became saturated with water vapor. This led to precipitation, and eventually the formation of  clouds (which we call rain). The water falls back down as snow, which then melts back down into rivers and streams.Eventually, the rainfall flows into the ocean and becomes replenished.

Rainfall occurs in two forms; wet and dry. Wet-rainfall occurs when the air temperature is warmer than the surrounding air. Dry-rainfall occurs when there is strong winds passing over cooler surfaces. In both cases, moisture condenses out of the air onto these cool surfaces. However, only the water molecules that happen to fall near each other stick together to form droplets. This results in drizzle, fog, and mist. Clouds form when the small droplets begin to join together.

The primary function of clouds is to reflect sunlight back into space. The earth receives enough solar radiation that without cloud cover, the planet would become dangerously hot and uninhabitable. Because of this, the earth's weather conditions are largely determined by cloud patterns.

Water comes from three major sources. First, there is ice. Ice is formed when water freezes. This happens naturally, but can also be done artificially. Second, there is groundwater, where water collects underground. Finally, there is seawater, where saltier waters collect at the bottom of lakes and seas.Seawater is more difficult to obtain and is usually bottled for human consumption.

Water exists in several different states. The first state is liquid. A liquid has a specific volume, density and a certain viscosity. Liquids can flow easily, and do not have any pressure applied to them. Water is a liquid at room temperatures. Above freezing temperatures, its molecules move more slowly than they do at lower temperatures.At higher temperatures, the movement is faster. This behavior explains why ice floats, while water sinks.

Water vapor is the second state of water. Vapor, unlike liquid water, cannot be measured using a scale. Instead, scientists measure how much water vapor is in the air. There are three types of vapor: dry, moist, and humid.Dry vapor has no water content, moist vapor is slightly wetter than dry, and humid vapor is fully saturated with water.

Water vapor moves around the atmosphere constantly, rising and falling depending on the amount of water vapor in the air. But what happens if the air gets too wet? Then, the water vapor condenses into liquid water. If the humidity is still high enough, the liquid water will freeze.If the humidity drops sufficiently, the frozen water will sublimate and escape into space.

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