The discharge of waste water from homes, industries, hospitals, etc. into the river pollutes this fresh water source. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-14/
The discharge of waste water from homes, industries, hospitals, etc. into the river pollutes this
fresh water source.
Organisms need water for the following reasons: (i) All cellular processes need water as a medium. Usually, the reactions that take place in our body or within the cells occur between substances that are dissolved in water. (ii) Since most of the substances are transported in a dissolved form, waterRead more
Organisms need water for the following reasons:
(i) All cellular processes need water as a medium. Usually, the reactions that take
place in our body or within the cells occur between substances that are dissolved in water.
(ii) Since most of the substances are transported in a dissolved form, water is necessary.
The following three human activities would lead to air pollution: (i) Burning of fossil fuels such as coal and petroleum (ii) Industrialization (iii) Deforestation For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-14/
The following three human activities would lead to air pollution:
(i) Burning of fossil fuels such as coal and petroleum
(ii) Industrialization
(iii) Deforestation
During day time, on being heated, a large amount of water evaporates from various water bodies and goes into the air. A part of this water vapour also reaches the atmosphere through biological activities such as transpiration and respiration. This causes the air in the atmosphere to heat up. When thRead more
During day time, on being heated, a large amount of water evaporates from various water bodies and goes into the air. A part of this water vapour also reaches the atmosphere through biological activities such as transpiration and respiration. This causes the air in the atmosphere to heat up.
When this heated air rises, it expands and cools, which results in the condensation of water vapour forming water droplets. The presence of dust and other suspended particles in air also facilitates the process of condensation. The formation of water droplets leads to the formation of clouds.
Do you know of any activity which may be polluting this water source?
The discharge of waste water from homes, industries, hospitals, etc. into the river pollutes this fresh water source. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-14/
The discharge of waste water from homes, industries, hospitals, etc. into the river pollutes this
fresh water source.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-14/
What is the major source of fresh water in the city/town/village where you live?
River is a major source of fresh water. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-14/
River is a major source of fresh water.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-14/
Why do organisms need water?
Organisms need water for the following reasons: (i) All cellular processes need water as a medium. Usually, the reactions that take place in our body or within the cells occur between substances that are dissolved in water. (ii) Since most of the substances are transported in a dissolved form, waterRead more
Organisms need water for the following reasons:
(i) All cellular processes need water as a medium. Usually, the reactions that take
place in our body or within the cells occur between substances that are dissolved in water.
(ii) Since most of the substances are transported in a dissolved form, water is necessary.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-14/
List any three human activities that you think would lead to air pollution.
The following three human activities would lead to air pollution: (i) Burning of fossil fuels such as coal and petroleum (ii) Industrialization (iii) Deforestation For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-14/
The following three human activities would lead to air pollution:
(i) Burning of fossil fuels such as coal and petroleum
(ii) Industrialization
(iii) Deforestation
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-14/
How are clouds formed?
During day time, on being heated, a large amount of water evaporates from various water bodies and goes into the air. A part of this water vapour also reaches the atmosphere through biological activities such as transpiration and respiration. This causes the air in the atmosphere to heat up. When thRead more
During day time, on being heated, a large amount of water evaporates from various water bodies and goes into the air. A part of this water vapour also reaches the atmosphere through biological activities such as transpiration and respiration. This causes the air in the atmosphere to heat up.
When this heated air rises, it expands and cools, which results in the condensation of water vapour forming water droplets. The presence of dust and other suspended particles in air also facilitates the process of condensation. The formation of water droplets leads to the formation of clouds.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-14/