Brief notes and important questions on Weather and Climate

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Weather:

The term weather means the state of the atmosphere at a particular place at a particular time. It includes the information regarding temperature, air pressure, condition of the sky, humidity precipitation etc.

Climate:

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The climate is the average atmospheric conditions of an area over a considerable period of time.

Meteorology:

The scientific study of weather condition is called meteorology. Weather forecast can be made with the help meteorology.

Temperature:

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The magnitude of heat or the measurement”‘ heat is called temperature.

Thermometer:

The temperature of a body is measured with the help of a thermometer. A thermometer is generally a narrow glass tube filled with a liquid. The most commonly used liquids are mercury and alcohol.

Types of thermometers

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Mainly two scales are used for the measurement of the temperature-the Celsius and Fahrenheit scales. Six’s maximum and minimum thermometer is used to measure the maximum and minimum temperatures during day and night.

Barometer:

Barometeris an instrument with the help of which the atmospheric pressure is measured.

Millibar:

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Millibar is a unit of atmospheric pressure. A pressure of 1,000 millibars is equivalent to 75 cm of mercury column.

Wind vane:

An instrument used in recording the direction of the wind is called a wind vane.

Anemometer:

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An anemometer is an instrument which is used to measure the speed of wind.

Humidity:

The humidity of air is a measure of the amount of water vapors present in the air.

Hygrometer:

Hygrometer is an instrument with the help of which the humidity of the atmosphere is measured.

Rain-gauge:

An instrument which is used for measuring rainfall.

Important Questions

1. What is barograph ?

Ans. Meteorologists usually use an instrument to monitor pressure which is called barograph.

2. Who are meteorologists ?

Ans. The scientists who study weather and collect data’s for Weather information are called meteorologists.

3. What is the approx. atmospheric pressure at sea level ?

Ans. 1,013.2 millibar.

4. Which is the most commonly used barometer ?

Ans. Aneroid barometer.

5. What is Pluviograph ?

Ans. A self-recording instrument called pluviograph which is used in measuring rainfall

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