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Ask QuestionPosted by Bhavishya Chauhan 6 years, 5 months ago
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Zehra Zaidi 6 years, 5 months ago
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Shlok Bawankar 6 years, 5 months ago
Posted by Prachi Mehta 6 years, 5 months ago
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Yogita Ingle 6 years, 5 months ago
Hydrated copper sulfate is blue in colour, while anhydrous Copper Sulphate has a white colour. The blue colour is due to the water of crystallization (CuSO4.5H2O).
Posted by Nilesh Jain 6 years, 5 months ago
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Aashi Sharma 6 years, 5 months ago
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Posted by Satyam Vishwakarma 6 years, 5 months ago
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Sia ? 6 years, 5 months ago
| Physical Changes | Chemical Change | ||
| 1. | It is not permanent and can easily be reversed. | 1. | It is permanent and cannot be easily reversed. |
| 2. | It does not lead to formation of new substances. | 2. | It leads to the formation of new substances. |
| 3. | No change in mass is noticed. | 3. | There is a change in mass of reactants and products. |
| 4. | The energy changes observed are small. | 5. | Large energy changes are observed. |
Posted by Raji Ahmad 6 years, 5 months ago
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Posted by Lisaqueen Choudhury? 6 years, 5 months ago
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Yogita Ingle 6 years, 4 months ago
Polar Region: Polar Region is at high latitude and hence do not receive adequate sunshine. Due to this, temperature is very low in the Polar Regions. The Polar Region is covered with snow, because of the low temperature.
Posted by Vishal Satish 6 years, 5 months ago
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Yogita Ingle 6 years, 4 months ago
Energy conservation- Hollow bricks can reduce the use of cooling and heating devices as per the seasonal requirements due to their thermal insulation property. This reduces the energy consumption thus saving the resources and your pockets. ... They also provide more sound insulation as compared to solid bricks.
Posted by Aruna Siva 6 years, 5 months ago
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Meghna Thapar 5 years, 10 months ago
Nutrition in Animals: Nutrition in animals takes place in five steps: ingestion, digestion, absorption, assimilation and egestion.
Ingestion – The process of taking food into the body is called ingestion. Different animals use different structures for taking food into their body like frog uses its long and cleft tongue to catch insects. Hydra ingests the food with the help of tentacles on which stinging cells are present. These cells kill the prey and put it into the mouth.
Posted by Bhumesh Raut 6 years, 5 months ago
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Jerom Johns 6 years, 5 months ago
Raji Ahmad 6 years, 5 months ago
Posted by Kanchan Prabha 6 years, 5 months ago
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Yogita Ingle 6 years, 5 months ago
The day to day condition of atmosphere at a particular place is called weather. The weather can be comfortable, or can be too hot or cold.
Posted by Nikhil Sharma 6 years, 5 months ago
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Yogita Ingle 6 years, 4 months ago
“Conduction is the transfer of heat from the hotter part of the material to its colder part without the actual movement of the particles. What I want to say here is that in the process of conduction there is no net movement of the particles of the body. Heat passes through solids by conduction only.
Posted by Iyya Ppan 6 years, 5 months ago
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Sia ? 6 years, 5 months ago
The Members of Legislative Assembly (MLAs) are democratically elected representative of the electorates.
Posted by Neeta Bevy 6 years, 5 months ago
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Posted by Anshu Raj 6 years, 5 months ago
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Posted by Aditya Chaudhary 6 years, 5 months ago
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Sia ? 6 years, 5 months ago
| Acid | Base |
| An acid produces H+ ions in aqueous solution | A base produces OH- ions in aqueous solution. |
| Acids are sour in taste. | Bases are bitter in taste |
| Acids change the colour of blue litmus to red. | Bases change the colour of red litmus to blue. |
Muskan Agarwal 6 years, 5 months ago
Posted by Namrata Bharadwaj 6 years, 5 months ago
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Muskan Agarwal 6 years, 5 months ago
Muskan Agarwal 6 years, 5 months ago
Posted by Saurabh Susar 6 years, 5 months ago
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Sia ? 6 years, 5 months ago
Life Cycle – Silk Moth: Actually silkworms are not worms, but the larvae or caterpillars hatched from the eggs of the silk moth. The life history of a silk moth starts when a female silk moth lays eggs.
The larvae or caterpillars hatched from the eggs of the silk moth. These silkworms feed on fresh mulberry leaves the silkworm grows in size and then becomes a pupa.
In the pupa stage, it weaves a net to hold itself. It then swings its head from side to side, secreting a fibre that hardens on contact with air. This fibre is made of a protein and becomes the silk fibre.
The caterpillar covers itself completely with silk fibre and turns into a pupa, this covering is known as the cocoon. The moth continues to develop within the cocoon. The silk thread or yarn is obtained from the silk moth’s cocoon.
Egg→ Larva or caterpillar → Pupa → Adult.
Posted by Parth Kamble 6 years, 5 months ago
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Muskan Agarwal 6 years, 5 months ago
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Sia ? 6 years, 5 months ago
(i) Rearing of silkworms: A female silk moth lays hundreds of eggs at a time.
Step 2: Thread extraction
Step 3: Dyeing.
Step 4: Spinning.
Step 5: Weaving.
Step 6: binding.
(ii) Processing of cocoons to obtain silk fibres
(iii) Converting silk fibres into silk cloth
Posted by Lisaqueen Choudhury? 6 years, 5 months ago
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Bhumesh Raut 6 years, 5 months ago
1Thank You