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Posted by Muscan Yadav 4 years, 6 months ago (5396715)
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Posted by Chitraksh Kashyap 4 years, 6 months ago (11295435)
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Akash Yadav 4 years, 6 months ago (10571260)
Posted by Snehasish Mohanty 4 years, 6 months ago (3481294)
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Preeti Dabral 4 years, 6 months ago (2983787)
Environmental degradation is currently a global issue that is the core subject matter of discussions and debates all over the world. The fact is that environmental degradation cannot be restricted by the national or state boundaries to a specific area or location that is causing such degradation may be. Its consequences are felt in the surrounding states or nations or sometimes globally as well.
For instance, let's take the example of air pollution. Air pollution through massive thermal power plants and other industries, in India, may cause pollution in Pakistan, Sri Lanka, etc.
Thus, our neighbours also experience an increase in asthma and other respiratory diseases due to pollution mainly caused by us. Acid rain, climate change, etc. are some issues which are transcontinental consequences. Deforestation in Brazil (the Selvas) has caused a disturbance in the rainfall pattern throughout South America.
Land degradation and conditions like a dam - burst in China affect India and Bangladesh as it causes massive silt deposition and floods. Now, environmental protection is a major issue globally and is taken seriously by almost all countries. Discussions take place on international levels among environmentalists and heads of states to fight the menaces.
Posted by Priyanka Satheeshwaran 4 years, 6 months ago (8616400)
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Posted by Aasritha 1001 4 years, 6 months ago (11315461)
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Bhavya Shah 4 years, 6 months ago (1581025)
Posted by Abad Shaikh 4 years, 6 months ago (7977941)
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Preeti Dabral 4 years, 6 months ago (2983787)
1. This civilization is extended far beyond the Indus Valley. The main towns of Indus valley civilization were Harappa, Mohenjo-Daro, Kalibangan, Lothal.
2. The significant features of Indus Valley civilization are personal cleanliness, town planning, construction of burnt-brick houses, ceramics, casting, forging of metals, manufacturing of cotton and woolen textiles.
3. Mohenjo-Daro people had finest bath facilities, drainage system, and knowledge of personal hygiene.
4. They were equally conscious of plant medicine since there was occasional warfare.
5. The town planning and other characteristics indicate that a homogeneous indigenous culture developed.
6.The six most important characteristics of a civilization are cities, government, religion, social structure, writing, and arts and architecture.
7.The Harappan City was divided into the upper town (also called the Citadel) and the lower town. The various features of the Harappan town Planning is given below: Granaries: The granary was the largest structure in Mohenjodaro, and in Harappa there were about six granaries or storehouses.
8.The six most important characteristics of a civilization are cities, government, religion, social structure, writing, and arts and architecture.
Posted by Anamika Sharma Sharma 4 years, 6 months ago (11315344)
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Posted by Bharti Panchal 4 years, 6 months ago (11308208)
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Saroj Pal 4 years, 6 months ago (11308684)
Posted by Jyoti Navik 4 years, 6 months ago (11315169)
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Posted by Oditi Sharma 4 years, 6 months ago (11150586)
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Sia ? 4 years, 6 months ago (6945213)
Identity I: (a + b)2 = a2 + 2ab + b2
Identity II: (a – b)2 = a2 – 2ab + b2
Identity III: a2 – b2= (a + b)(a – b)
Identity IV: (x + a)(x + b) = x2 + (a + b) x + ab
Identity V: (a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ca
Identity VI: (a + b)3 = a3 + b3 + 3ab (a + b)
Identity VII: (a – b)3 = a3 – b3 – 3ab (a – b)
Identity VIII: a3 + b3 + c3 – 3abc = (a + b + c)(a2 + b2 + c2 – ab – bc – ca)
Posted by Jasleen Gill 4 years, 6 months ago (8726093)
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Preeti Dabral 4 years, 6 months ago (2983787)
(1) Metal E is most reactive because it displaces zinc from {tex}ZnSO_4{/tex} solution.
(2) Metal C is the least reactive since it has not displaced any of the metals from their respective salt solutions.
(3) Metal D is more reactive than Ag and less reactive than Fe. It can displace Cu from {tex}CuSO_4{/tex} solution.
(4) Since metal E has displaced Zn from {tex}ZnSO_4{/tex} solution, it is more reactive than Zinc. It is therefore expected to be more reactive than iron as well because iron is placed below zinc in the reactive series. Therefore, metal E displaces Fe from {tex}FeSO_4{/tex} solution. A grey /black coating of iron will be deposited on the metal E.
(5) Decreasing order of reactivity E>B>D>A>C
Posted by Vansh Pandey 4 years, 6 months ago (11525428)
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Preeti Dabral 4 years, 6 months ago (2983787)
1.Test the food item with a few drops of iodine solution on the food sample and observe. We can see that the part of food with iodine solution turns to a blue-black color. A blue-black color indicates the presence of starch.
2.If the substance turns the paper translucent (or slightly see-through), it contains fat.
3.The presence of proteins in food is tested in the following way:
- Step i - The food should be in either liquid form or in suspension form (used for solid food material)
- Step ii - Preparation of suspension -food material is crushed in mortar -pestle using water.
- Step iii - Take little sample in a test tube, to it add a few drops of oil caustic soda solution till the mixture clears.
- Step iv - Then add a few drops of copper sulphate solution and shake it well.
- Step v - Carefully heat the test tube over a flame. Hold the damp litmus paper over the mouth of the test tube and observe any colour change.
Presence of violet colour indicates the presence of protein in the food sample.
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Bhavya Rajput 4 years, 6 months ago (9958765)
3 Thank You