When the news reports 30 mm of rainfall, it means that rainwater collected in a rain gauge rose to a height of 30 millimetres. A rain gauge is a cylindrical instrument with a funnel that directs rain into a measuring tube. The depth of water collected indicates the amount of rainfall. It’s a preciseRead more
When the news reports 30 mm of rainfall, it means that rainwater collected in a rain gauge rose to a height of 30 millimetres. A rain gauge is a cylindrical instrument with a funnel that directs rain into a measuring tube. The depth of water collected indicates the amount of rainfall. It’s a precise way to monitor precipitation and helps weather departments track rainy days, issue flood warnings and understand seasonal patterns important for agriculture and water management.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
Atmospheric pressure is the force exerted by the weight of air above and around us. It varies with height—being highest at sea level and decreasing with altitude. It influences weather systems; for example, low pressure can lead to storms or rainfall. People often feel changes in pressure before badRead more
Atmospheric pressure is the force exerted by the weight of air above and around us. It varies with height—being highest at sea level and decreasing with altitude. It influences weather systems; for example, low pressure can lead to storms or rainfall. People often feel changes in pressure before bad weather. It is measured in millibars using barometers. Understanding atmospheric pressure is essential for weather forecasting, flying and even human health, especially in high-altitude regions where oxygen is low.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
People feel breathless or tired at high altitudes because the air pressure is lower, which means there is less oxygen available. Our bodies must work harder to absorb oxygen, often resulting in dizziness, fatigue and breathlessness. This condition is more noticeable above 2,500 meters. That's why clRead more
People feel breathless or tired at high altitudes because the air pressure is lower, which means there is less oxygen available. Our bodies must work harder to absorb oxygen, often resulting in dizziness, fatigue and breathlessness. This condition is more noticeable above 2,500 meters. That’s why climbers, tourists and soldiers are advised to acclimatise gradually. Without proper adjustment, one may suffer from altitude sickness, a condition caused by the sudden drop in oxygen levels at higher elevations.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
Atmospheric pressure is crucial for weather prediction. A sudden drop can indicate storms, depressions or cyclones. That’s why meteorologists monitor pressure regularly. Pilots rely on it for flight safety, sailors for sea navigation and mountaineers for health monitoring at high altitudes. Even farRead more
Atmospheric pressure is crucial for weather prediction. A sudden drop can indicate storms, depressions or cyclones. That’s why meteorologists monitor pressure regularly. Pilots rely on it for flight safety, sailors for sea navigation and mountaineers for health monitoring at high altitudes. Even farmers benefit, as pressure data helps forecast rain or dry spells. Barometers measure this pressure, often recorded in millibars. Accurate readings are essential for disaster warnings, aviation safety and overall weather forecasting.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
When people travel to high altitudes, air pressure drops and oxygen levels decrease. The body needs time to adapt by producing more red blood cells to carry oxygen. Taking breaks along the way allows this process, known as acclimatisation, to occur. Without this adjustment, individuals may experiencRead more
When people travel to high altitudes, air pressure drops and oxygen levels decrease. The body needs time to adapt by producing more red blood cells to carry oxygen. Taking breaks along the way allows this process, known as acclimatisation, to occur. Without this adjustment, individuals may experience altitude sickness—symptoms include dizziness, headaches and nausea. Hence, trekkers, tourists and soldiers climbing high passes like Khardung La pause often to protect their health and avoid severe discomfort.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
If the news says that a particular place received 30 mm of rainfall in a day, what does it mean? How is rainfall measured?
When the news reports 30 mm of rainfall, it means that rainwater collected in a rain gauge rose to a height of 30 millimetres. A rain gauge is a cylindrical instrument with a funnel that directs rain into a measuring tube. The depth of water collected indicates the amount of rainfall. It’s a preciseRead more
When the news reports 30 mm of rainfall, it means that rainwater collected in a rain gauge rose to a height of 30 millimetres. A rain gauge is a cylindrical instrument with a funnel that directs rain into a measuring tube. The depth of water collected indicates the amount of rainfall. It’s a precise way to monitor precipitation and helps weather departments track rainy days, issue flood warnings and understand seasonal patterns important for agriculture and water management.
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 atmospheric pressure. Explain.
Atmospheric pressure is the force exerted by the weight of air above and around us. It varies with height—being highest at sea level and decreasing with altitude. It influences weather systems; for example, low pressure can lead to storms or rainfall. People often feel changes in pressure before badRead more
Atmospheric pressure is the force exerted by the weight of air above and around us. It varies with height—being highest at sea level and decreasing with altitude. It influences weather systems; for example, low pressure can lead to storms or rainfall. People often feel changes in pressure before bad weather. It is measured in millibars using barometers. Understanding atmospheric pressure is essential for weather forecasting, flying and even human health, especially in high-altitude regions where oxygen is low.
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 lessWhy people sometimes feel breathless, dizzy or tired at high altitudes.
People feel breathless or tired at high altitudes because the air pressure is lower, which means there is less oxygen available. Our bodies must work harder to absorb oxygen, often resulting in dizziness, fatigue and breathlessness. This condition is more noticeable above 2,500 meters. That's why clRead more
People feel breathless or tired at high altitudes because the air pressure is lower, which means there is less oxygen available. Our bodies must work harder to absorb oxygen, often resulting in dizziness, fatigue and breathlessness. This condition is more noticeable above 2,500 meters. That’s why climbers, tourists and soldiers are advised to acclimatise gradually. Without proper adjustment, one may suffer from altitude sickness, a condition caused by the sudden drop in oxygen levels at higher elevations.
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 lessWhy do you think it would be important to measure atmospheric pressure? Who are the people most likely to use such measurements?
Atmospheric pressure is crucial for weather prediction. A sudden drop can indicate storms, depressions or cyclones. That’s why meteorologists monitor pressure regularly. Pilots rely on it for flight safety, sailors for sea navigation and mountaineers for health monitoring at high altitudes. Even farRead more
Atmospheric pressure is crucial for weather prediction. A sudden drop can indicate storms, depressions or cyclones. That’s why meteorologists monitor pressure regularly. Pilots rely on it for flight safety, sailors for sea navigation and mountaineers for health monitoring at high altitudes. Even farmers benefit, as pressure data helps forecast rain or dry spells. Barometers measure this pressure, often recorded in millibars. Accurate readings are essential for disaster warnings, aviation safety and overall weather forecasting.
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 lessPeople who journey to places at a high altitude are advised to make pauses on the way to allow the body to acclimatise. Explain.
When people travel to high altitudes, air pressure drops and oxygen levels decrease. The body needs time to adapt by producing more red blood cells to carry oxygen. Taking breaks along the way allows this process, known as acclimatisation, to occur. Without this adjustment, individuals may experiencRead more
When people travel to high altitudes, air pressure drops and oxygen levels decrease. The body needs time to adapt by producing more red blood cells to carry oxygen. Taking breaks along the way allows this process, known as acclimatisation, to occur. Without this adjustment, individuals may experience altitude sickness—symptoms include dizziness, headaches and nausea. Hence, trekkers, tourists and soldiers climbing high passes like Khardung La pause often to protect their health and avoid severe discomfort.
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