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Yogita Ingle 6 years ago
Air is a mixture of gases, water vapour and dust particles. Some of the gases; present in air; are discussed below.
Nitrogen: Nitrogen is the largest component of air. Nitrogen makes up 79% of air around us. Nitrogen is used by plants to make protein. Plants cannot take nitrogen directly from the air. Some nitrogen fixing bacteria live in soil. They help in nitrogen fixation in soil. Thus, plants are able to take nitrogenous compounds from the soil.
Oxygen: Oxygen is the second largest component of air. Oxygen makes up 21% of the air around us. Oxygen is used by living beings for respiration. After respiration, the living beings produce carbon dioxide.
Carbon dioxide: The remaining 1% of air is composed of carbon dioxide, many other gases, water vapour and dust particles. Carbon dioxide is also important for living beings. Plant need carbon dioxide to make food during photosynthesis. During photosynthesis, plants take in carbon dioxide and release oxygen. Thus, green plants help in maintaining the balance of carbon dioxide and oxygen in atmosphere.
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Yogita Ingle 6 years ago
The government is responsible for the enforcement of law.
Enforcement is important because the rights of the citizens have to be protected. It also becomes more necessary to have stronger laws because more Indian and foreign industries are being set up. In addition, it is very important to safeguard our environment.
Posted by Karishma Bakshi 6 years ago
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Yogita Ingle 6 years ago
1.Immigration means movement of people to a country and emigration means movement of people from a country.
2.Immigration can be called as moving into a country and emigration as moving out of a country.
3.An immigrant is one who migrates to a nation and emigrant is one who migrates away from his home country.
4.Immigration is Latin immigrare that means ‘to go into’. Emigration comes from Latin emigrare, which means ‘to move’.
5.Immigration and emigration have the same meaning ‘moving into’ but are opposed to each other in direction.
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Yogita Ingle 6 years ago
- The image produced when the light arising from an object appears to strike a certain point
- It cannot be captured on a screen as it is the imaginary intersection of ray of light
- The images are erect
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