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Posted by Kumar Swamy 5 years, 10 months ago
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Yogita Ingle 5 years, 10 months ago
According to Greek legend magnetism was first discovered by a shepherd named Megnes, who lived in Megnesia, Greece. Megnes was herding his sheep through the mountains. Suddenly he noticed the ferrule of his stick and nails in his sandals got stuck to a rock. The iron in his stick and nails had become attracted to the magnetic rock. The stone was named as magnetite, after the name of the shepherd or the country it was found in. It was also known as loadstone because of its attractive properties.
Posted by Anmol Khangura 5 years, 10 months ago
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Meghna Thapar 5 years, 6 months ago
Electricity is the most versatile form. It can be transported over long distances easily. It can be routed through almost any kind / shape of path in the process. Can be converted to any other form of energy at will very conveniently — light, heat, chemical, mechanical or magnetic. Electrical energy can be stored and can be transformed to other forms of energy.it is the most developed and cheap form of energy as compared to nuclear energy etc.
Posted by Manjula Behera 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
An electric circuit is a combination of individual electronic components, such as resistors, transistors, capacitors, inductors and diodes, connected together by conductive wires through which electric current can flow.
Posted by Mugdha Srivastava 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
The term “biotic” is formed by the combination of two terms, “bio” meaning life and “ic” meaning like. Thus the term means life-like and is related to all the living entities present in an ecosystem.
Posted by Manoj Sikarwar 5 years, 11 months ago
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Aditi Patel 5 years, 10 months ago
Yogita Ingle 5 years, 11 months ago
A lunar eclipse will happen when the Earth passes between the Moon and the Sun. This generally happens during the Full Moon phase and it can be observed almost everywhere on Earth. A lunar eclipse can also last for a few hours.
Posted by Ningthoujam Premananda 5 years, 11 months ago
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Ningthoujam Premananda 5 years, 11 months ago
Posted by Atul Kumar 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Air pollution is defined as the introduction of pollutants, organic molecules, or other unsafe materials into Earth’s atmosphere. This can be in the form of excessive gases like carbon dioxide and other vapours that cannot be effectively removed through natural cycles, such as the carbon cycle or the nitrogen cycle.
Air pollution has a great negative effects on humans and the ecosystem. The constituents can be dense particles, fluid, or gasses. A contaminant can be of natural or artificial. Contaminants are categorized as primary or secondary.
Posted by Rk Rout 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
The chemical substances present in food that provides nourishment essential for the growth and maintenance of your body are called nutrients. Your diet consists of different nutrients that can be classified as carbohydrates, fats, proteins, vitamins, water and mineral salts. The study of food and diet is known as nutrition.
Posted by Priya Kanaujia 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
A force that attracts a body towards the centre of the earth, or towards any other physical body having mass.
Posted by Shubhalaxmi Ramesh Behera 5 years, 11 months ago
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Meghna Thapar 5 years, 10 months ago
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Yogita Ingle 5 years, 11 months ago
A compass has a magnetic needle that can rotate freely. When a compass is kept at a place, the magnetic needle aligns in north-south direction. Red arrow of the compass needle is termed as north pole and the other end as south pole.
Posted by Harshita Jain 5 years, 11 months ago
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Meghna Thapar 5 years, 10 months ago
Posted by Gousiya Anjum 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Waste is defined as unwanted and unusable materials and is regarded as a substance which is of no use. Waste that we see in our surroundings is also known as garbage. Garbage is mainly considered as a solid waste that includes wastes from our houses (domestic waste), wastes from schools, offices, etc (municipal wastes) and wastes from industries and factories (industrial wastes).
Posted by Rohan Nair 5 years, 11 months ago
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Anushka Pandey 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Properties of Magnets
- A magnet attracts magnetic materials towards itself.
- A freely suspended bar magnet always aligns in the north-south direction.
- Unlike poles attract each other and like poles repel each other.
- A magnet with a single pole does not exist. If a magnet is cut into two pieces each piece will behave like an independent magnet, with a north pole and a south pole.
- When a bar magnet is rubbed over an iron bar, it changes the iron bar into a magnet.
Posted by Rohan Nair 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
(1) The leaves make food for the plant by photosynthesis.
(2) The leaves get rid of excess water from the plant through transpiration.
(3) The leaves carry out the process of respiration in plants. The leaves make food for the plant by the process of photosynthesis.
Posted by Vivek Maheshwari 5 years, 11 months ago
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