match the following
Hailstones- 1)upward airflow
2)sublimation
microcopic water
particles floating
in the air(its 3opt)
4) condensation on
cold object
Answers
Answer:
questions are incorrect. ...........
Answer:
Everyone knows what a cloud looks like, but not everyone knows that this white, puffy formation is actually a mass of tiny water droplets and ice crystals suspended above the earth by air currents. Clouds are formed when warm, moist air rises and cools. During this cooling process the water vapor (water not in a liquid state) in the rising air condenses (changes into a liquid state) to form water droplets, or it sublimates (changes into a solid state without becoming liquid first) to form ice crystals. From these water droplets and ice crystals come all forms of precipitation, including rain, drizzle, sleet, snow, and hail.
Air currents within the cloud keep the water droplets moving about, and when they collide, the larger ones absorb the smaller ones. This process is called coalescence, which means “growing together into one body.” When they grow large enough—one to three millimeters in diameter—gravity causes them to fall as raindrops. To give you an idea of just how small the cloud droplets are, the average raindrop contains about a million of them.
Ideal cloud temperatures for the formation of snow range from ten degrees above zero to four degrees below. However, for a beautiful snow scene to occur, air and ground temperatures must also be low. Otherwise, the snowflakes that form in the cloud will melt either as they fall through the air or when they touch the ground.
Cloud temperatures may range from seventy-five degrees above to forty degrees below zero. In the colder air, when water vapor comes in contact with a microscopic, airborne particle of dust, soil, rock, or volcanic ash, it crystallizes and forms a single tiny ice crystal. As more water vapor freezes around it, the original crystal forms branches and slowly grows into a small, flat, six-sided snowflake. Very cold air contains too little moisture to produce big snowflakes, so large flakes occur only when the temperature is just a few degrees below freezing. Ideal temperatures for the formation of snow range from ten degrees above zero to four degrees below.
Once a snowflake has reached the proper size, it begins falling. If the air near the ground is warm, the snowflake melts on the way down and becomes a raindrop. However, if the air temperature is cold, the snowflake falls without melting, and we are able to see it float to the earth. Whether the snowflake melts when it touches the earth or remains a frozen crystal depends on the ground temperature. Because the ground is solid and cools much more slowly than air, it is possible for the air temperature to be cold enough for snowflakes to fall before the ground is cold enough for them to remain frozen when they land. When the ground is cold enough, the snowflakes quickly cover it.
Sleet is another cold-weather product, but it forms when the air near the ground is freezing or below and the air above that is warm enough to allow raindrops to pass through. When the raindrops strike the cold air, they freeze into beads of cloudy-white ice that fall to the ground. These little ice pellets are usually about one-eighth of an inch or less in diameter
Explanation:
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