People feel breathless at high altitudes because the air pressure is lower, resulting in reduced oxygen levels. As we climb higher, our lungs take in less oxygen per breath, causing fatigue, dizziness, and shortness of breath. This condition is common among trekkers, soldiers, or tourists visiting pRead more
People feel breathless at high altitudes because the air pressure is lower, resulting in reduced oxygen levels. As we climb higher, our lungs take in less oxygen per breath, causing fatigue, dizziness, and shortness of breath. This condition is common among trekkers, soldiers, or tourists visiting places like Ladakh or the Himalayas. To cope, people are advised to acclimatise slowly, allowing the body time to adjust. Acclimatisation helps the body produce more red blood cells to carry oxygen.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
Atmospheric pressure is the weight of the air pushing down on the Earth’s surface. It is measured using a barometer and expressed in millibars. At sea level, pressure is about 1013 mb. As altitude increases, atmospheric pressure decreases because there is less air above. In mountainous regions, thisRead more
Atmospheric pressure is the weight of the air pushing down on the Earth’s surface. It is measured using a barometer and expressed in millibars. At sea level, pressure is about 1013 mb. As altitude increases, atmospheric pressure decreases because there is less air above. In mountainous regions, this drop in pressure reduces oxygen levels, making breathing harder. For example, pressure at high-altitude areas like Ladakh can be around 650 mb. This affects weather conditions and human activity.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
A rain gauge is used to measure the amount of rainfall. It consists of a funnel that directs rainwater into a cylindrical measuring tube with a scale. When it rains, water is collected in the cylinder, and the height of the water column indicates the rainfall in millimetres. For example, 30 mm of raRead more
A rain gauge is used to measure the amount of rainfall. It consists of a funnel that directs rainwater into a cylindrical measuring tube with a scale. When it rains, water is collected in the cylinder, and the height of the water column indicates the rainfall in millimetres. For example, 30 mm of rain means the collected water level was 30 millimetres high. Rain gauges are placed in open areas to ensure accurate measurement, away from obstructions.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
Weather is monitored using various instruments. A thermometer measures temperature, a barometer measures atmospheric pressure, a hygrometer records humidity, a rain gauge measures rainfall, and an anemometer captures wind speed. A wind vane shows wind direction. All these instruments are used in weaRead more
Weather is monitored using various instruments. A thermometer measures temperature, a barometer measures atmospheric pressure, a hygrometer records humidity, a rain gauge measures rainfall, and an anemometer captures wind speed. A wind vane shows wind direction. All these instruments are used in weather stations and Automated Weather Stations (AWS) to collect accurate data at regular intervals. This data helps meteorologists observe trends and issue forecasts, enabling people and governments to prepare for changing weather conditions.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
Weather is measured using scientific instruments: thermometers record temperature, barometers measure air pressure, rain gauges measure rainfall, anemometers record wind speed and hygrometers assess humidity. These instruments are often placed together in weather stations to monitor changes continuoRead more
Weather is measured using scientific instruments: thermometers record temperature, barometers measure air pressure, rain gauges measure rainfall, anemometers record wind speed and hygrometers assess humidity. These instruments are often placed together in weather stations to monitor changes continuously. Automated Weather Stations (AWS) provide real-time, accurate data without human involvement. Regular measurements help meteorologists track patterns, predict future conditions and inform the public about upcoming weather. This system allows for consistent monitoring of atmospheric elements across locations.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
Why do people feel breathless at high altitudes?
People feel breathless at high altitudes because the air pressure is lower, resulting in reduced oxygen levels. As we climb higher, our lungs take in less oxygen per breath, causing fatigue, dizziness, and shortness of breath. This condition is common among trekkers, soldiers, or tourists visiting pRead more
People feel breathless at high altitudes because the air pressure is lower, resulting in reduced oxygen levels. As we climb higher, our lungs take in less oxygen per breath, causing fatigue, dizziness, and shortness of breath. This condition is common among trekkers, soldiers, or tourists visiting places like Ladakh or the Himalayas. To cope, people are advised to acclimatise slowly, allowing the body time to adjust. Acclimatisation helps the body produce more red blood cells to carry oxygen.
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 and how does it change with altitude?
Atmospheric pressure is the weight of the air pushing down on the Earth’s surface. It is measured using a barometer and expressed in millibars. At sea level, pressure is about 1013 mb. As altitude increases, atmospheric pressure decreases because there is less air above. In mountainous regions, thisRead more
Atmospheric pressure is the weight of the air pushing down on the Earth’s surface. It is measured using a barometer and expressed in millibars. At sea level, pressure is about 1013 mb. As altitude increases, atmospheric pressure decreases because there is less air above. In mountainous regions, this drop in pressure reduces oxygen levels, making breathing harder. For example, pressure at high-altitude areas like Ladakh can be around 650 mb. This affects weather conditions and human activity.
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 lessExplain the function of a rain gauge and how rainfall is measured.
A rain gauge is used to measure the amount of rainfall. It consists of a funnel that directs rainwater into a cylindrical measuring tube with a scale. When it rains, water is collected in the cylinder, and the height of the water column indicates the rainfall in millimetres. For example, 30 mm of raRead more
A rain gauge is used to measure the amount of rainfall. It consists of a funnel that directs rainwater into a cylindrical measuring tube with a scale. When it rains, water is collected in the cylinder, and the height of the water column indicates the rainfall in millimetres. For example, 30 mm of rain means the collected water level was 30 millimetres high. Rain gauges are placed in open areas to ensure accurate measurement, away from obstructions.
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 lessHow can we measure and monitor the weather around us? Name the instruments used.
Weather is monitored using various instruments. A thermometer measures temperature, a barometer measures atmospheric pressure, a hygrometer records humidity, a rain gauge measures rainfall, and an anemometer captures wind speed. A wind vane shows wind direction. All these instruments are used in weaRead more
Weather is monitored using various instruments. A thermometer measures temperature, a barometer measures atmospheric pressure, a hygrometer records humidity, a rain gauge measures rainfall, and an anemometer captures wind speed. A wind vane shows wind direction. All these instruments are used in weather stations and Automated Weather Stations (AWS) to collect accurate data at regular intervals. This data helps meteorologists observe trends and issue forecasts, enabling people and governments to prepare for changing weather conditions.
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 lessHow can we measure and monitor the weather around us?
Weather is measured using scientific instruments: thermometers record temperature, barometers measure air pressure, rain gauges measure rainfall, anemometers record wind speed and hygrometers assess humidity. These instruments are often placed together in weather stations to monitor changes continuoRead more
Weather is measured using scientific instruments: thermometers record temperature, barometers measure air pressure, rain gauges measure rainfall, anemometers record wind speed and hygrometers assess humidity. These instruments are often placed together in weather stations to monitor changes continuously. Automated Weather Stations (AWS) provide real-time, accurate data without human involvement. Regular measurements help meteorologists track patterns, predict future conditions and inform the public about upcoming weather. This system allows for consistent monitoring of atmospheric elements across locations.
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