Chapter 7
Weather and Climate
✦ Q&A:
1. Write down some of the elements of weather.
Answer: The elements of weather are –
the temperature of the atmosphere
Humidity
The amount of rainfall
The speed of the wind
The direction of the wind
Air pressure
2. What is the difference between weather and climate?
answer:
| Subject | weather | Climate |
|---|---|---|
| Definition | Changes in the atmosphere of a place from day to day | Average weather conditions for 25-30 years in a place |
| Duration | Less time (hours, days or weeks) | long periods (years or decades) |
| example | It's raining today | The climate of Assam is dry and hot |
3. What are the names of the instruments used to collect weather data?
answer:
Component Device name
Air temperature thermometer
Rain Gauge Rain Gauge
Wind direction Wind vanes
wind speed anemometer
air pressure barometer
4. What is meant by humidity?
Answer: Humidity is the amount of water vapor in the air.
5. How is the climate determined?
Answer : The climate of a place is determined by taking the average amount of weather components (such as temperature, humidity, rainfall) over 25-30 years.
6. Why doesn't everywhere experience the same weather at the same time?
Answer: Different parts of the atmosphere have different temperatures, humidity, wind speed etc. at different times and weather varies accordingly.
7. What is the desert climate like?
Answer: The climate of the desert is hot and dry. It has high temperatures and very little rainfall.
8. Where might information for completing Table 7.1 be obtained?
Answer: Newspapers (e.g. Assamese Pratidin, Daily Janambhumi)
Website that provides television, radio, or online weather
School Environmental Science Center (if any)
9. What is the purpose of weather forecasting?
Answer: The purpose of weather forecasting is to warn people about possible weather changes.
10. What is the reason why the atmospheric temperature is not the same in all regions of the world?
Answer: Temperatures vary because the heat of the Sun does not fall equally everywhere on the Earth. These differences are caused by differences in the spherical shape of the Earth and the angle of the Sun's rays.
