weathering element

1. WHAT IS WEATHER ?
 WHEN YOU LOOK OUT OF THE WINDOW
IN THE MORNINGTO SEE WHAT KIND OF
DAY IT IS , YOU MAY NOTICETHAT IT IS
SUNNY AND BRIGHT . BUT THIS MAY
CHANGE DURING THE DAY.A SUNNY
MORNING MAY CHANGE TO A DARK &
CLOUDY AFTERNOON .WEATHER
DESCRIBES THE CONDITION OF THE
ATMOSPHERE OVER A SHORT PERIOD OF
TIME.

3.  A temperature is a numerical measure of hot or
cold. Its measurement is by detection of heat
radiation or particle velocity or kinetic energy,
or by the bulk behavior of
a thermometric material. It may be calibrated in
any of various temperature scales, Celsius,
Fahrenheit, Kelvin, etc.

5.  Humidity is the amount of water vapor in the air.
Water vapor is the gaseous state of water and is
invisible. Humidity indicates the likelihood of
precipitation, dew, or fog. There are three main
measurements of humidity: absolute, relative and
specific. Absolute humidity is the water content of
air. Relative humidity, expressed as a percent,
measures the current absolute humidity relative to
the maximum for that temperature. Specific
humidity is a ratio of the water vapor content of
the mixture to the total air content on a mass basis.