Relative humidity refers to the amount of water vapor present in the air as a percentage of the maximum it could hold at that temperature. When the air is fully saturated, the relative humidity is 100%. In dry conditions, it's often 20%–40%, while in humid weather, it ranges from 60% to 80%. It affeRead more
Relative humidity refers to the amount of water vapor present in the air as a percentage of the maximum it could hold at that temperature. When the air is fully saturated, the relative humidity is 100%. In dry conditions, it’s often 20%–40%, while in humid weather, it ranges from 60% to 80%. It affects how comfortable we feel—high humidity makes us sweat more. Hygrometers are used to measure relative humidity in homes, industries and weather stations.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
In Delhi, where humidity is 52%, wet clothes dry faster because the air can absorb more moisture. In Kochi, with 84% humidity, evaporation is slower, so clothes remain wet longer. You’ll also sweat more in Kochi because high humidity reduces the evaporation of sweat from your skin, making you feel hRead more
In Delhi, where humidity is 52%, wet clothes dry faster because the air can absorb more moisture. In Kochi, with 84% humidity, evaporation is slower, so clothes remain wet longer. You’ll also sweat more in Kochi because high humidity reduces the evaporation of sweat from your skin, making you feel hotter and stickier. In Delhi, sweat evaporates faster, cooling the body. This difference shows how humidity affects comfort, drying time and our ability to cool down.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
An Automated Weather Station (AWS) is an advanced system that uses electronic sensors to measure weather elements such as temperature, humidity, wind speed, rainfall and air pressure. It operates automatically and sends real-time data to meteorologists and weather services without requiring human suRead more
An Automated Weather Station (AWS) is an advanced system that uses electronic sensors to measure weather elements such as temperature, humidity, wind speed, rainfall and air pressure. It operates automatically and sends real-time data to meteorologists and weather services without requiring human supervision. AWS units are widely used in areas like agriculture, aviation, environmental research and disaster warning systems. They provide continuous, accurate weather information that helps in predicting conditions and making decisions to ensure safety and planning.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
The National Disaster Management Authority (NDMA) is a central agency in India responsible for managing natural and man-made disasters. It works to reduce loss of life and property by planning, coordinating and implementing disaster response strategies. NDMA also sets up early warning systems like ARead more
The National Disaster Management Authority (NDMA) is a central agency in India responsible for managing natural and man-made disasters. It works to reduce loss of life and property by planning, coordinating and implementing disaster response strategies. NDMA also sets up early warning systems like Automated Weather Stations (AWS) in vulnerable areas to detect changes in weather conditions. It plays a vital role in preparing communities, training responders and ensuring fast and efficient disaster management throughout the country.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
Weather forecasts are useful in many areas: Agriculture – Farmers plan sowing or harvesting. Transport – Pilots, sailors and drivers avoid unsafe conditions. Disaster Management – Authorities prepare for floods, storms and evacuate people. Health – People take precautions during heatwaves or cold spRead more
Weather forecasts are useful in many areas:
Agriculture – Farmers plan sowing or harvesting.
Transport – Pilots, sailors and drivers avoid unsafe conditions.
Disaster Management – Authorities prepare for floods, storms and evacuate people.
Health – People take precautions during heatwaves or cold spells.
Education/Tourism – Trips and events are planned based on weather.
So, at least five categories—agriculture, transport, disaster safety, health and activities—depend on weather predictions for safety and efficiency.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
What do you mean by relative humidity?
Relative humidity refers to the amount of water vapor present in the air as a percentage of the maximum it could hold at that temperature. When the air is fully saturated, the relative humidity is 100%. In dry conditions, it's often 20%–40%, while in humid weather, it ranges from 60% to 80%. It affeRead more
Relative humidity refers to the amount of water vapor present in the air as a percentage of the maximum it could hold at that temperature. When the air is fully saturated, the relative humidity is 100%. In dry conditions, it’s often 20%–40%, while in humid weather, it ranges from 60% to 80%. It affects how comfortable we feel—high humidity makes us sweat more. Hygrometers are used to measure relative humidity in homes, industries and weather stations.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-7/social-science/
See lessIf the humidity in Delhi is at 52% while in Kochi it is 84%, in which of the two places are wet clothes likely to dry faster? And where are you likely to sweat more, assuming the temperature is the same in both places?
In Delhi, where humidity is 52%, wet clothes dry faster because the air can absorb more moisture. In Kochi, with 84% humidity, evaporation is slower, so clothes remain wet longer. You’ll also sweat more in Kochi because high humidity reduces the evaporation of sweat from your skin, making you feel hRead more
In Delhi, where humidity is 52%, wet clothes dry faster because the air can absorb more moisture. In Kochi, with 84% humidity, evaporation is slower, so clothes remain wet longer. You’ll also sweat more in Kochi because high humidity reduces the evaporation of sweat from your skin, making you feel hotter and stickier. In Delhi, sweat evaporates faster, cooling the body. This difference shows how humidity affects comfort, drying time and our ability to cool down.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-7/social-science/
See lessWhat is Automated Weather Station (AWS)?
An Automated Weather Station (AWS) is an advanced system that uses electronic sensors to measure weather elements such as temperature, humidity, wind speed, rainfall and air pressure. It operates automatically and sends real-time data to meteorologists and weather services without requiring human suRead more
An Automated Weather Station (AWS) is an advanced system that uses electronic sensors to measure weather elements such as temperature, humidity, wind speed, rainfall and air pressure. It operates automatically and sends real-time data to meteorologists and weather services without requiring human supervision. AWS units are widely used in areas like agriculture, aviation, environmental research and disaster warning systems. They provide continuous, accurate weather information that helps in predicting conditions and making decisions to ensure safety and planning.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-7/social-science/
See lessDo you know about National Disaster Management Authority?
The National Disaster Management Authority (NDMA) is a central agency in India responsible for managing natural and man-made disasters. It works to reduce loss of life and property by planning, coordinating and implementing disaster response strategies. NDMA also sets up early warning systems like ARead more
The National Disaster Management Authority (NDMA) is a central agency in India responsible for managing natural and man-made disasters. It works to reduce loss of life and property by planning, coordinating and implementing disaster response strategies. NDMA also sets up early warning systems like Automated Weather Stations (AWS) in vulnerable areas to detect changes in weather conditions. It plays a vital role in preparing communities, training responders and ensuring fast and efficient disaster management throughout the country.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-7/social-science/
See lessDiscuss, in pairs, different situations in which weather predictions are helpful. Make a list and after you have completed it, share it and discuss it with the pair sitting next to you. How many different categories of situations have you been able to identify?
Weather forecasts are useful in many areas: Agriculture – Farmers plan sowing or harvesting. Transport – Pilots, sailors and drivers avoid unsafe conditions. Disaster Management – Authorities prepare for floods, storms and evacuate people. Health – People take precautions during heatwaves or cold spRead more
Weather forecasts are useful in many areas:
So, at least five categories—agriculture, transport, disaster safety, health and activities—depend on weather predictions for safety and efficiency.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-7/social-science/
See less