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Chapter 16-1 Study Guide Answers. Number 1. Water gets from Earth’s surface into the air by the process of evaporation . Number 2. Clouds form from the process of condensation . Number 3. Rain is the most common form of precipitation. Number 4.
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Number 1 • Water gets from Earth’s surface into the air by the process of evaporation.
Number 2 • Clouds form from the process of condensation.
Number 3 • Rain is the most common form of precipitation.
Number 4 • Runoff carries water from precipitation into the oceans.
Number 5 • Relative humidity is a percentage that shows how much water vapor is in the air compared to how much the air can actually hold at a certain temperature.
Number 6 • A psychrometer is used to measure the relative humidity of the air.
Number 7 • Humidity is the amount of water vapor in the air.
Number 8 • Saturatedair has a relative humidity of 100%. It is holding all the water vapor that it can at a certain temperature.
Number 9 • Air can become saturated when water vapor is added to the air through evaporation or when air cools to its dew point.
Number 10 • Dew point is the temperature at which gas condenses into a liquid.
Number 11 • The air’s ability to hold water vapor will increase if the air’s temperature increases.
Number 12 • Clouds are made of millions of tiny water droplets or ice crystals.
Number 13 • Cumulus clouds bring fair weather. No rain.
Number 14 • Cumulonimbus clouds bring thunderstorms.
Number 15 • Nimbostratus clouds bring light to heavy continuous rain.
Number 16 • An altocumulus cloud is a puffy mid-level cloud that indicates fair weather.
Number 17 • A cirrostratus cloud is layered and is made of ice crystals. Found at high altitudes.
Number 18 • Cumulonimbus clouds are found from low to high altitudes. Very large clouds.
Number 19 • Stratus clouds form in layers. They can cover large areas of the sky and block out the sun.
Number 20 • Fog is a stratus cloud that has formed on the ground.
Number 21 • Sleet starts as rain and freezes in the air. • Snow forms when water vapor changes directly to a solid.
Number 22 • Hail is balls or lumps of ice that fall from cumulonimbus clouds. • Hail forms when updrafts of air in a cumulonimbus clouds carries raindrops high I the clouds, the raindrops freeze and hail forms.