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Ask QuestionPosted by Itz Raman Here ☺ 5 years, 2 months ago
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Secret ??? 5 years, 2 months ago
Reema Janu 5 years, 2 months ago
Vanshika Panwar 5 years, 2 months ago
Gaurav Seth 5 years, 2 months ago
When magnesium ribbon is burnt in air, it combines with oxygen to form white powder magnesium oxide MgO with the release of heat and light. It forms a white powder of the magnesium oxide. Magnesium gives up two electrons to oxygen atoms to form this powdery product.
2Mg+O2⟶2MgO
Posted by Hemanth Reddy 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
Yes, parents like Mrs Pumphrey definitely exist. These people spoil their children by ptaking sure all their demands are met. They spoil their children in the name of love and care. They not only feed them junk but also spoil their social habits. This kind of a behaviour is very harmful for children. Such overprotective parental behaviour hinders their growth as adults. In fact it sows the seeds of greed and dependency in them They become stubborn and do not learn to value anything. For them, hard work is a myth as they get everything easily. Over pampered children often fail to face the hardships of life later, as for them life has been a cakewalk. Pampering children in moderation is healthy, but excess of it is harmful. It is not just bad for humans but also for animals, as we see in the story ‘A triumph of Surgery’.
Posted by Avantika Behera 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
Peggy and Maddie decided to change their behaviour after Wanda’s incident. Peggy had tried to justify her behaviour towards Wanda that it was not her dress for which she teased her but she indirectly encouraged her for those beautiful drawings. And, that made her the winner of the drawing competition. While Maddie decided not to be a silent spectator and promised herself that she would try to protect if anyone would be mocked down.
Posted by Palika Chandra Swaroop 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
Let BD be the tree broken at point C such that the broken part CD takes the position CA and strikes the ground at A. It is given that AB = 8 m and ∠BAC = 30°.
Let BC = x metres and CD = CA = y metres
In right triangle ABC, we have
Now, height of the tree
Hence, the height of the tree 
Posted by Pihu ✨ 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
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Gaurav Seth 5 years, 2 months ago
Started on the pattern of “Chipko Movement” this movement was started in Karnataka to save trees. Appiko means ‘to hug’. On 8 September, 1983, 160 men, women and children hugged the trees (to save them) in Salkani forest in Sirsi and forced the woodcutters to leave.
Posted by Aditi Ringusia 5 years, 2 months ago
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Aditi Ringusia 5 years, 2 months ago
Gaurav Seth 5 years, 2 months ago
Given,
∆ABC in which ∠B = 90° and BD ⊥ AC
Also, AD = 4 cm and CD = 5 cm
In ∆ADB and ∆CDB,
∠ADB = ∠CDB [each equal 90°]
∠BAD = ∠DBC [each equal to 90°-∠C]
∴ ∆DBA ∼ ∆DCB [by AAA similarity criteria]
Then,
In right angled ∆BDC,
BC2 = BD2 + CD2 [by Pythagoras theorem]
= BC2 = (2√5)2 + (5)2
= BC2 = 20 + 25 = 45
= BC = √45 = 3√5
Again,
Hence, BD = 2√5cm and AB = 6cm.
Posted by Itz Raman Here ☺ 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
You have to read the chapters and poem in full from ncert textbook. But in english variety of questions can be made. You have to practice a lot in english to passage based question too. understand the chapters line by line from textbook . Only summary of chapters and poem in not sufficient.
आपको ncert पाठ्यपुस्तक से पूर्ण अध्याय और कविता को पढ़ना है। लेकिन अंग्रेजी में विभिन्न प्रकार के प्रश्न किए जा सकते हैं। आपको आधारित प्रश्न भी पास करने के लिए अंग्रेजी में बहुत अभ्यास करना होगा। पाठ्यपुस्तक से पंक्ति द्वारा अध्याय को समझें। केवल अध्याय और कविता का सारांश पर्याप्त नहीं है।
Posted by Hûkķâ Ĺôvéř 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
Ans. The entire staff was roused, maids rushed in and out bringing his day bed, night bed, cushion, toys. Everybody was in tears. Mrs. Pumphrey gave a desperate cry, when Tricki was sent to surgery.
Posted by Ved Rawat 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
Properties:
- Salts are mostly solids which melt as well as boil at high temperatures.
- Salts are generally soluble in water. For example, sodium chloride, potassium sulphate, aluminium nitrate, ammonium carbonate, etc., are soluble salts while silver chloride, lead chloride, copper carbonate, etc., are insoluble in water.
- It is a white crystalline solid. It exists as decahydrate of sodium carbonate.
- When exposed to dry air and heating it loses water molecules to change into anhydrous form.
- Na2CO3.10H2O + Exposure to open dry air → Na2CO3.H2O + 9H2O
- Na2CO3.H2O + Heating → Na2CO3
- It is soluble in water and during dilution heat will releases out.
- On reaction with acids sodium carbonate releases carbon dioxide along with the formation of sodium salts and water. Na2CO3 + HCl → 2NaCl + H2O + CO2
- Sodium carbonate is used to manufacture of glass, cleansing agents, soap, glass and paper.
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Gaurav Seth 5 years, 2 months ago
CBSE has introduced the Case Study Questions in class 10 and class 12 this year. The annual examination of 2021 will have case-based questions in almost all major subjects. This article will help you to find sample questions based on case studies and <a href="https://play.google.com/store/apps/details?id=in.techchefs.MyCBSEGuide">model question papers</a> for CBSE Board Exams 2021.
Case Study Question in Mathematics
Here is an example of a case study based question for class 10 Mathematics. To get more questions and model question papers for the 2021 examination, download <a href="https://play.google.com/store/apps/details?id=in.techchefs.MyCBSEGuide">myCBSEguide Mobile App</a>.
Posted by Md Janu Ansari 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
Vacuum, space in which there is no matter or in which the pressure is so low that any particles in the space do not affect any processes being carried on there. It is a condition well below normal atmospheric pressure and is measured in units of pressure (the pascal).
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Abhay Singh 5 years, 2 months ago
Abhay Singh 5 years, 2 months ago
Posted by Shubham Chaudhary 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
Lungs are located in the chest cavity and separated from stomach and other parts of digestive system by a diaphragm. During breathing, intercostal muscles of ribs contract and relax which causes change in the volume of thorax.
During inhalation rib cage is raised and diaphragm lowers as intercostal muscles contract while during exhalation rib cage is lowered, diaphragm moves up, as intercostal muscles relax.
To ensure that clean atmospheric air is taken in during inhalation, there are hairs in nose which filter the air, trapping dirt in the mucus secreted from the epithelial lining.
In addition, epithelium in trachea also consists of ciliated cells. Cilia continuously beat upward to sweep the mucus from throat to the pharynx. Special goblet cells secrete mucus to trap the dirt from the inhaled air.
Cilia sweep it upward and it is swallowed from the pharynx into the adjacent oesophagus. Hence, the air entering lungs is free from dirt particles.
Posted by Rohit Pag 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
Online transactions:The process where goods or services are bought using credit/debit cards online through an EFT system is called as an online transaction.
It requires a PIN to complete the process.
Websites that allow online transaction:
- Amazon
- Paypal
- Square
- Stripe
Posted by Jyoti Yadav 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
f
The alt Attribute: This attribute of <img> tag is used to provide alternate text when an image on a Web page cannot be displayed. The alternative text is the text associated with an image that serves the same purpose and conveys the same essential message.
Posted by Shubham Chaudhary 5 years, 2 months ago
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Secret ??? 5 years, 2 months ago
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Secret ??? 5 years, 2 months ago
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Reema Janu 5 years, 2 months ago
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