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Ask QuestionPosted by Chitwan Chahar 4 years, 1 month ago
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Sara? 7C 4 years, 1 month ago
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The cotton picked up from the plants still, has its seed in it. These seeds are pulled out of the cotton with the help of steel combs. The process by which cotton fibre is separated from seeds by steel combs is called ginning. Ginning can be done manually and also by machine. The ginned cotton is very light and fluffy occupies a lot of space. For its transportation, the ginned cotton is pressed tightly and packed in bales. Each bale roughly weighs about 200 kg.
It is the process of changing fibre into yarn. The raw cotton is supplied to the industry in the form of bales. This cotton is converted into yarn through the following steps. The process of making yarn from fibres is called spinning.
Spinning machine
• The straightened fibres of cotton are called silver
• Cotton bales are cleaned from leaves and dried stem to make silver.
Posted by Angad Veer 4 years, 1 month ago
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Sara? 7C 4 years, 1 month ago
Yogita Ingle 4 years, 1 month ago
Properties of an image formed by plane mirror
- The image obtained is virtual.
- The image is laterally inverted.
- The image is erect.
- The size of the image is the same as the size of the object.
- The distance between the image obtained is the same as the distance between the object from the mirror.
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Sara? 7C 4 years, 1 month ago
Angad Veer 4 years, 1 month ago
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When a substance undergoes a physical change, its composition remains the same despite its molecules being rearranged. Physical change is a temporary change.
Posted by S. Pranavi 4 years, 1 month ago
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Yogita Ingle 4 years, 1 month ago
- Periodic Motion – This is a type of motion where the object repeats its motion after a fixed interval of time. Examples pendulum of a clock, motion of child on a swing etc.
Ridhi Negi 4 years, 1 month ago
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Anahat Kaur 4 years, 1 month ago
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Matter is everything around you. Atoms and compounds are all made of very small parts of matter. Those atoms go on to build the things you see and touch every day. Matter is defined as anything that has mass and takes up space (it has volume).
Harshwardhan Navadkar 4 years, 1 month ago
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Meghna Thapar 4 years, 1 month ago
Biotic factors are the living components of an ecosystem. They are sorted into three groups: producers or autotrophs, consumers or heterotrophs, and decomposers or detritivores. A biotic factor is a living organism that shapes its environment. In a freshwater ecosystem, examples might include aquatic plants, fish, amphibians, and algae. Biotic and abiotic factors work together to create a unique ecosystem. Biotic factors include animals, plants, fungi, bacteria, and protists. Some examples of abiotic factors are water, soil, air, sunlight, temperature, and minerals.
Posted by Harshika Aggarwal 4 years, 1 month ago
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Sara? 7C 4 years, 1 month ago
Yogita Ingle 4 years, 1 month ago
A loom is a device for weaving yarn or threads into fabric.
It is used for making fabrics.
The loom which is worked by hands is called a handloom whereas a loom which works with electric power is called powerloom.
Posted by Hanu Mishra Hanu 4 years, 1 month ago
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Sara? 7C 4 years, 1 month ago
Lakshay Phogat 4 years, 1 month ago
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Obesity
- Fat contains more amount of energy than carbohydrates. But continuous intake of fat would cause deposition of fat in our body.
- Obesity is an excess accumulation of fat in our body.
- Most of the junk food and oily food contains lots of fats. One should utilize the fat in the form of physical energy to balance the body.
Posted by Hanu Mishra Hanu 4 years, 1 month ago
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Yogita Ingle 4 years, 1 month ago
Vitamin B1: Deficiency of vitamin B1 causes beriberi, that results in weak muscles and severe weight loss. Acute deficiency can lead to paralysis and cardiac failure.
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V.V Hemanth 4 years, 1 month ago
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Harshika Aggarwal 4 years, 1 month ago
Posted by Hanu Mishra Hanu 4 years, 1 month ago
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Yogita Ingle 4 years, 1 month ago
- Water vapors are released into the atmosphere through stomata present on leaf this process is called transpiration.
- Due to transpiration a suction force is generated inside the plant and water runs from roots to shoots and other part of plant.
Posted by Hanu Mishra Hanu 4 years, 1 month ago
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Yogita Ingle 4 years, 1 month ago
Creepers and climbers are plants with weak stem that needs support to stand erect. The main difference between a creeper and climber is as follows:
Creepers creep along the soil, i.e. they grow and spread horizontally on soil, whereas, Climbers need the support of any vertical object, to climb up vertically. Climbers climb up a rigid support in various manner, by twining around the support spirally, some climbers climb by producing hooks, while some of them have special roots to hold on to the rigid support and then climb.
Posted by Areeba Ahmad 4 years, 1 month ago
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Gayathri Dharshini 4 years, 1 month ago
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- The process of making yarn from fibres is called Spinning.
- In this process, a large number of fibres from a cotton wool are drawn out and gently twisted such that the fibres gel together to form a yarn.
- Devices used are takli, Charaka and modern day machines.
- Charaka is the wheel which was popularised by Mahatma Gandhi with an intent to promote inhouse hand woven Indian cloth market.
- After spinning, yarns are made into fabrics.
Posted by Hanu Mishra Hanu 4 years, 1 month ago
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Posted by Shahiman Debbarma 4 years, 1 month ago
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Yogita Ingle 4 years, 1 month ago
The five materials and things made from them are as follows:
- Steel: Knives, utensils and cars are made of steel.
- Wood: Chairs and tables are made from wood.
- Cotton: Clothes are made of cotton.
- Leather: Shoes and belts are made of leather.
- Paper: Books, writing materials and writing pads are made of paper.
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The food we normally eat in a day is our diet. For growth and maintenance of good health, our diet should have all the nutrients that our body needs, in right quantities. The diet should also contain a good amount of roughage and water. Such a diet is called a balanced diet.
Posted by Aditya Yadav 4 years, 1 month ago
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Harshika Aggarwal 4 years, 1 month ago
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The increase in size of an object on heating is called expansion whereas the decrease in size of an object on cooling is called contraction.
Shiva Swamy.D Shiva Swamy 4 years, 1 month ago
Posted by Prushti Vachhani 4 years, 1 month ago
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Aditya Yadav 4 years, 1 month ago
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Yogita Ingle 4 years, 1 month ago
Solubility is the maximum amount of substance that can be dissolved in given volume of liquid , solubility increase with increase in tempreture.
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