Humidity plays a key role in maintaining environmental conditions. In museums, high humidity can damage paintings, manuscripts, or sculptures by causing mold or corrosion. Therefore, humidity is carefully monitored and controlled. In industries like food processing, textiles, and electronics, wrongRead more
Humidity plays a key role in maintaining environmental conditions. In museums, high humidity can damage paintings, manuscripts, or sculptures by causing mold or corrosion. Therefore, humidity is carefully monitored and controlled. In industries like food processing, textiles, and electronics, wrong humidity levels can spoil products or interrupt production. A hygrometer helps maintain suitable levels. Controlled humidity ensures safety, longevity, and proper functioning of both delicate materials and high-precision industrial processes, making measurement very important.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
Ants, birds, and other animals often behave differently before weather changes. For example, ants carrying eggs to higher places suggest heavy rain may be coming. Birds flying low may indicate low pressure and an approaching storm. Frogs croaking loudly also signal rainfall. These behaviours are natRead more
Ants, birds, and other animals often behave differently before weather changes. For example, ants carrying eggs to higher places suggest heavy rain may be coming. Birds flying low may indicate low pressure and an approaching storm. Frogs croaking loudly also signal rainfall. These behaviours are nature’s clues and have been used by communities for centuries to predict weather. Such signs are especially useful in rural areas and remain part of traditional weather forecasting methods even today.
For more NCERT Solutions for Class 7 Social Science Chapter 2 Understanding the Weather Questions & Answer:
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:
What is the importance of measuring humidity in museums and industries?
Humidity plays a key role in maintaining environmental conditions. In museums, high humidity can damage paintings, manuscripts, or sculptures by causing mold or corrosion. Therefore, humidity is carefully monitored and controlled. In industries like food processing, textiles, and electronics, wrongRead more
Humidity plays a key role in maintaining environmental conditions. In museums, high humidity can damage paintings, manuscripts, or sculptures by causing mold or corrosion. Therefore, humidity is carefully monitored and controlled. In industries like food processing, textiles, and electronics, wrong humidity levels can spoil products or interrupt production. A hygrometer helps maintain suitable levels. Controlled humidity ensures safety, longevity, and proper functioning of both delicate materials and high-precision industrial processes, making measurement very important.
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 do ants and birds help in predicting weather changes?
Ants, birds, and other animals often behave differently before weather changes. For example, ants carrying eggs to higher places suggest heavy rain may be coming. Birds flying low may indicate low pressure and an approaching storm. Frogs croaking loudly also signal rainfall. These behaviours are natRead more
Ants, birds, and other animals often behave differently before weather changes. For example, ants carrying eggs to higher places suggest heavy rain may be coming. Birds flying low may indicate low pressure and an approaching storm. Frogs croaking loudly also signal rainfall. These behaviours are nature’s clues and have been used by communities for centuries to predict weather. Such signs are especially useful in rural areas and remain part of traditional weather forecasting methods even today.
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 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 less