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14. How are sea and land breezes caused? A) Through convection currents C) Through rains 15. What is created temporarily behind when a vehicle moves very fast? A) Low pressure C) High temperature B) Through cyclones D) Through conduction B) High pressure D) Cyclone 16. From where do the monsoon winds come to India? C) Southeast D) Southwest A) Northeast 17. Upon heating, gases become lighter. Why? A) Increase in molecular spaces C) Breaking of molecules?
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14. How are sea and land breezes caused? A) Through convection current...
Sea and Land Breezes, Vehicle and Monsoon Winds, Heating of Gases
Sea and Land Breezes:
Sea and land breezes are caused due to the difference in the heating of land and water. During the day, land heats up faster than water. This results in the air above the land to become hotter and lighter, causing it to rise. The cool air from the sea then moves in to take its place, creating a sea breeze. During the night, the land cools down faster than water, causing the air above it to become cooler and heavier, and sink. The air from the sea then moves towards the land, creating a land breeze.
Vehicle and Monsoon Winds:
When a vehicle moves very fast, it creates a low-pressure area behind it temporarily. This is because the air molecules are pushed apart, creating a vacuum. The surrounding air rushes in to fill this vacuum, creating a high-pressure wave in front of the vehicle and a low-pressure wave behind it.
The monsoon winds in India come from the southwest during the summer months and from the northeast during the winter months. This is because of the difference in the heating of the land and water, causing the air above to rise and create a low-pressure area. The air then moves from the high-pressure areas (oceans) to the low-pressure areas (land), resulting in the monsoon winds.
Heating of Gases:
Upon heating, gases become lighter because of an increase in molecular spaces. When gases are heated, the molecules gain kinetic energy and move faster, causing the space between them to increase. This results in the density of the gas decreasing, making it lighter. The breaking of molecules, on the other hand, would result in a chemical reaction and is not related to the heating of gases.
Sea and Land Breezes:
Sea and land breezes are caused due to the difference in the heating of land and water. During the day, land heats up faster than water. This results in the air above the land to become hotter and lighter, causing it to rise. The cool air from the sea then moves in to take its place, creating a sea breeze. During the night, the land cools down faster than water, causing the air above it to become cooler and heavier, and sink. The air from the sea then moves towards the land, creating a land breeze.
Vehicle and Monsoon Winds:
When a vehicle moves very fast, it creates a low-pressure area behind it temporarily. This is because the air molecules are pushed apart, creating a vacuum. The surrounding air rushes in to fill this vacuum, creating a high-pressure wave in front of the vehicle and a low-pressure wave behind it.
The monsoon winds in India come from the southwest during the summer months and from the northeast during the winter months. This is because of the difference in the heating of the land and water, causing the air above to rise and create a low-pressure area. The air then moves from the high-pressure areas (oceans) to the low-pressure areas (land), resulting in the monsoon winds.
Heating of Gases:
Upon heating, gases become lighter because of an increase in molecular spaces. When gases are heated, the molecules gain kinetic energy and move faster, causing the space between them to increase. This results in the density of the gas decreasing, making it lighter. The breaking of molecules, on the other hand, would result in a chemical reaction and is not related to the heating of gases.
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14. How are sea and land breezes caused? A) Through convection current...
14. Sea and land breezes are caused through convection currents.
15. A) Low pressure
16. C & D
17. A
15. A) Low pressure
16. C & D
17. A
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14. How are sea and land breezes caused? A) Through convection currents C) Through rains 15. What is created temporarily behind when a vehicle moves very fast? A) Low pressure C) High temperature B) Through cyclones D) Through conduction B) High pressure D) Cyclone 16. From where do the monsoon winds come to India? C) Southeast D) Southwest A) Northeast 17. Upon heating, gases become lighter. Why? A) Increase in molecular spaces C) Breaking of molecules?
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14. How are sea and land breezes caused? A) Through convection currents C) Through rains 15. What is created temporarily behind when a vehicle moves very fast? A) Low pressure C) High temperature B) Through cyclones D) Through conduction B) High pressure D) Cyclone 16. From where do the monsoon winds come to India? C) Southeast D) Southwest A) Northeast 17. Upon heating, gases become lighter. Why? A) Increase in molecular spaces C) Breaking of molecules? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about 14. How are sea and land breezes caused? A) Through convection currents C) Through rains 15. What is created temporarily behind when a vehicle moves very fast? A) Low pressure C) High temperature B) Through cyclones D) Through conduction B) High pressure D) Cyclone 16. From where do the monsoon winds come to India? C) Southeast D) Southwest A) Northeast 17. Upon heating, gases become lighter. Why? A) Increase in molecular spaces C) Breaking of molecules? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 14. How are sea and land breezes caused? A) Through convection currents C) Through rains 15. What is created temporarily behind when a vehicle moves very fast? A) Low pressure C) High temperature B) Through cyclones D) Through conduction B) High pressure D) Cyclone 16. From where do the monsoon winds come to India? C) Southeast D) Southwest A) Northeast 17. Upon heating, gases become lighter. Why? A) Increase in molecular spaces C) Breaking of molecules?.
14. How are sea and land breezes caused? A) Through convection currents C) Through rains 15. What is created temporarily behind when a vehicle moves very fast? A) Low pressure C) High temperature B) Through cyclones D) Through conduction B) High pressure D) Cyclone 16. From where do the monsoon winds come to India? C) Southeast D) Southwest A) Northeast 17. Upon heating, gases become lighter. Why? A) Increase in molecular spaces C) Breaking of molecules? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about 14. How are sea and land breezes caused? A) Through convection currents C) Through rains 15. What is created temporarily behind when a vehicle moves very fast? A) Low pressure C) High temperature B) Through cyclones D) Through conduction B) High pressure D) Cyclone 16. From where do the monsoon winds come to India? C) Southeast D) Southwest A) Northeast 17. Upon heating, gases become lighter. Why? A) Increase in molecular spaces C) Breaking of molecules? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 14. How are sea and land breezes caused? A) Through convection currents C) Through rains 15. What is created temporarily behind when a vehicle moves very fast? A) Low pressure C) High temperature B) Through cyclones D) Through conduction B) High pressure D) Cyclone 16. From where do the monsoon winds come to India? C) Southeast D) Southwest A) Northeast 17. Upon heating, gases become lighter. Why? A) Increase in molecular spaces C) Breaking of molecules?.
Solutions for 14. How are sea and land breezes caused? A) Through convection currents C) Through rains 15. What is created temporarily behind when a vehicle moves very fast? A) Low pressure C) High temperature B) Through cyclones D) Through conduction B) High pressure D) Cyclone 16. From where do the monsoon winds come to India? C) Southeast D) Southwest A) Northeast 17. Upon heating, gases become lighter. Why? A) Increase in molecular spaces C) Breaking of molecules? in English & in Hindi are available as part of our courses for Class 7.
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14. How are sea and land breezes caused? A) Through convection currents C) Through rains 15. What is created temporarily behind when a vehicle moves very fast? A) Low pressure C) High temperature B) Through cyclones D) Through conduction B) High pressure D) Cyclone 16. From where do the monsoon winds come to India? C) Southeast D) Southwest A) Northeast 17. Upon heating, gases become lighter. Why? A) Increase in molecular spaces C) Breaking of molecules?, a detailed solution for 14. How are sea and land breezes caused? A) Through convection currents C) Through rains 15. What is created temporarily behind when a vehicle moves very fast? A) Low pressure C) High temperature B) Through cyclones D) Through conduction B) High pressure D) Cyclone 16. From where do the monsoon winds come to India? C) Southeast D) Southwest A) Northeast 17. Upon heating, gases become lighter. Why? A) Increase in molecular spaces C) Breaking of molecules? has been provided alongside types of 14. How are sea and land breezes caused? A) Through convection currents C) Through rains 15. What is created temporarily behind when a vehicle moves very fast? A) Low pressure C) High temperature B) Through cyclones D) Through conduction B) High pressure D) Cyclone 16. From where do the monsoon winds come to India? C) Southeast D) Southwest A) Northeast 17. Upon heating, gases become lighter. Why? A) Increase in molecular spaces C) Breaking of molecules? theory, EduRev gives you an
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