Rain
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PROJECT ON NATURAL PROCESS OF RAIN PROJECT DEVELOPED BY : ARTI MAHAJAN PROJECT GUIDED BY :
KAUR
HARPREET-
INTRODUCTION RAIN, precipitation of liquid drops of water. Raindrops generally have a diameter greater than 0.5 mm. Their size can vary. Their rate of fall increases up to 7.6 mm/s with their size. The precipitation of smaller drops
PROCESS OF PRECIPITATION
DIAGRAM
PROCESS OF PRECIPITATION
Air masses acquire moisture on passing over warm bodies of water, or over wet land surfaces. The moisture, or water vapor, is carried upward into the air mass by turbulence and convection. The lifting required to cool and condense this water vapor results from several processes, and study of these processes provides a key for
ACID-RAINFALL Acid rain is caused by the combination of sulfur dioxide and nitrogen compounds with water in the atmosphere. In addition to chemically burning the leaves of
Forest Damaged by Acid Rain Forests, lakes, ponds, and other terrestrial and aquatic environments throughout the world are being severely damaged
LOW-RAINFALL The water vapor’s extra energy is called the latent heat of condensation and of freezing. When water vapor condenses to form liquid cloud droplets, it releases its latent heat of condensation into the air. When precipitation occurs, these water droplets fall but they leave the latent heat of condensation behind in the air. When water droplets freeze, or when water vapor directly converts to ice crystals, additional heat is released. When this air
AVERAGE-RAINFALL Rainfall is critical, in particular, for it replenishes ground water and supplies both natural watershed systems and irrigation channels. Worldwide rainfall averages vary greatly from region to region, as shown here. Areas that receive less than 250 mm (10 in) of rain each year are considered
SOURCES OF RESEARCH:1 – TEXT BOOK FOR SCIENCE 2 – INTERNET 3 – ENCARTA ENCYCLOPEDIA
KAUR
HARPREET-
INTRODUCTION RAIN, precipitation of liquid drops of water. Raindrops generally have a diameter greater than 0.5 mm. Their size can vary. Their rate of fall increases up to 7.6 mm/s with their size. The precipitation of smaller drops
PROCESS OF PRECIPITATION
DIAGRAM
PROCESS OF PRECIPITATION
Air masses acquire moisture on passing over warm bodies of water, or over wet land surfaces. The moisture, or water vapor, is carried upward into the air mass by turbulence and convection. The lifting required to cool and condense this water vapor results from several processes, and study of these processes provides a key for
ACID-RAINFALL Acid rain is caused by the combination of sulfur dioxide and nitrogen compounds with water in the atmosphere. In addition to chemically burning the leaves of
Forest Damaged by Acid Rain Forests, lakes, ponds, and other terrestrial and aquatic environments throughout the world are being severely damaged
LOW-RAINFALL The water vapor’s extra energy is called the latent heat of condensation and of freezing. When water vapor condenses to form liquid cloud droplets, it releases its latent heat of condensation into the air. When precipitation occurs, these water droplets fall but they leave the latent heat of condensation behind in the air. When water droplets freeze, or when water vapor directly converts to ice crystals, additional heat is released. When this air
AVERAGE-RAINFALL Rainfall is critical, in particular, for it replenishes ground water and supplies both natural watershed systems and irrigation channels. Worldwide rainfall averages vary greatly from region to region, as shown here. Areas that receive less than 250 mm (10 in) of rain each year are considered
SOURCES OF RESEARCH:1 – TEXT BOOK FOR SCIENCE 2 – INTERNET 3 – ENCARTA ENCYCLOPEDIA
