The primary purpose of windmills is to generate electricity (A) by converting wind energy into mechanical power, which drives turbines to produce electricity. Historically, windmills were also used for grinding grain and pumping water, but modern wind turbines focus on energy production. For more viRead more
The primary purpose of windmills is to generate electricity (A) by converting wind energy into mechanical power, which drives turbines to produce electricity. Historically, windmills were also used for grinding grain and pumping water, but modern wind turbines focus on energy production.
The correct answer is (B) 21%. Oxygen makes up approximately 21% of Earth's atmosphere. The majority of the air is nitrogen, which constitutes about 78%, while the remaining 1% consists of other gases like argon, carbon dioxide and trace elements. For more visit here: https://www.tiwariacademy.in/ncRead more
The correct answer is (B) 21%.
Oxygen makes up approximately 21% of Earth’s atmosphere. The majority of the air is nitrogen, which constitutes about 78%, while the remaining 1% consists of other gases like argon, carbon dioxide and trace elements.
The most abundant gas in the air is Nitrogen (C). It makes up about 78% of Earth's atmosphere. Oxygen is the second most abundant at 21%, while carbon dioxide and argon exist in much smaller amounts. Nitrogen is essential for plant growth. For more visit here: https://www.tiwariacademy.in/ncert-soluRead more
The most abundant gas in the air is Nitrogen (C). It makes up about 78% of Earth’s atmosphere. Oxygen is the second most abundant at 21%, while carbon dioxide and argon exist in much smaller amounts. Nitrogen is essential for plant growth.
The correct answer is (A) Collecting rainwater for future use. Rainwater harvesting involves gathering and storing rainwater from rooftops, land surfaces, or other catchment areas. This collected water can be used for drinking, irrigation and groundwater recharge, helping to conserve water and reducRead more
The correct answer is (A) Collecting rainwater for future use.
Rainwater harvesting involves gathering and storing rainwater from rooftops, land surfaces, or other catchment areas. This collected water can be used for drinking, irrigation and groundwater recharge, helping to conserve water and reduce dependence on other sources.
The correct answer is (B) Respiration. Stomata are tiny openings on the surface of leaves that regulate gas exchange. They allow oxygen and carbon dioxide to move in and out, facilitating respiration and photosynthesis. They also help in transpiration, which controls water loss in plants. For more vRead more
The correct answer is (B) Respiration.
Stomata are tiny openings on the surface of leaves that regulate gas exchange. They allow oxygen and carbon dioxide to move in and out, facilitating respiration and photosynthesis. They also help in transpiration, which controls water loss in plants.
The purpose of windmills.
The primary purpose of windmills is to generate electricity (A) by converting wind energy into mechanical power, which drives turbines to produce electricity. Historically, windmills were also used for grinding grain and pumping water, but modern wind turbines focus on energy production. For more viRead more
The primary purpose of windmills is to generate electricity (A) by converting wind energy into mechanical power, which drives turbines to produce electricity. Historically, windmills were also used for grinding grain and pumping water, but modern wind turbines focus on energy production.
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What percentage of air is oxygen?
The correct answer is (B) 21%. Oxygen makes up approximately 21% of Earth's atmosphere. The majority of the air is nitrogen, which constitutes about 78%, while the remaining 1% consists of other gases like argon, carbon dioxide and trace elements. For more visit here: https://www.tiwariacademy.in/ncRead more
The correct answer is (B) 21%.
Oxygen makes up approximately 21% of Earth’s atmosphere. The majority of the air is nitrogen, which constitutes about 78%, while the remaining 1% consists of other gases like argon, carbon dioxide and trace elements.
For more visit here:
See lesshttps://www.tiwariacademy.in/ncert-solutions/class-6/science/
Which gas is most abundant in the air?
The most abundant gas in the air is Nitrogen (C). It makes up about 78% of Earth's atmosphere. Oxygen is the second most abundant at 21%, while carbon dioxide and argon exist in much smaller amounts. Nitrogen is essential for plant growth. For more visit here: https://www.tiwariacademy.in/ncert-soluRead more
The most abundant gas in the air is Nitrogen (C). It makes up about 78% of Earth’s atmosphere. Oxygen is the second most abundant at 21%, while carbon dioxide and argon exist in much smaller amounts. Nitrogen is essential for plant growth.
For more visit here:
See lesshttps://www.tiwariacademy.in/ncert-solutions/class-6/science/
Rainwater harvesting
The correct answer is (A) Collecting rainwater for future use. Rainwater harvesting involves gathering and storing rainwater from rooftops, land surfaces, or other catchment areas. This collected water can be used for drinking, irrigation and groundwater recharge, helping to conserve water and reducRead more
The correct answer is (A) Collecting rainwater for future use.
Rainwater harvesting involves gathering and storing rainwater from rooftops, land surfaces, or other catchment areas. This collected water can be used for drinking, irrigation and groundwater recharge, helping to conserve water and reduce dependence on other sources.
For more visit here:
See lesshttps://www.tiwariacademy.in/ncert-solutions/class-6/science/
What is the primary function of stomata in plants?
The correct answer is (B) Respiration. Stomata are tiny openings on the surface of leaves that regulate gas exchange. They allow oxygen and carbon dioxide to move in and out, facilitating respiration and photosynthesis. They also help in transpiration, which controls water loss in plants. For more vRead more
The correct answer is (B) Respiration.
Stomata are tiny openings on the surface of leaves that regulate gas exchange. They allow oxygen and carbon dioxide to move in and out, facilitating respiration and photosynthesis. They also help in transpiration, which controls water loss in plants.
For more visit here:
See lesshttps://www.tiwariacademy.in/ncert-solutions/class-6/science/