Question: Mention one reason why tungsten is used for making filament of electric lamp. Answer: It has low resistivity and high melting point. Question: Calculate the number of electrons constituting one coulomb of change. (Charge one electron = 1.6 × 10-19C) Answer: Number of electron = 1C/1.6 × 10-19C = 0.625 × 1019 = 6.25 × 10-18 …

Question: What is Hydrotropism? Answer: Hydrotropism is a type of tropism, where the plant shows movement in response to water. Question: What is coordination? Answer: The organ system cannot work independently. They are linked in one way or the other. Working together of all these systems is called coordination. Question: …

CBSE will conduct the CBSE Board Exam 2019 from Friday, February 15 onwards. Candidates to appear for the exam need to know a few tips to score high in CBSE Board Exam 2019: The Central Board of Secondary Education, CBSE Board Exam 2019 will commence from February 15 for Class 12. …

NCERT 10th Class (CBSE) Science: Life Process Quiz 35 Multiple Choice Questions related to NCERT 10th Class (CBSE) Science (Biology) Life Processes Quiz The feeding of complex organic matter by ingesting, which is subsequently digested and absorbed is called holozoic nutrition e.g., Amoeba, frog, human beings etc. It is because …

Question: Name the components of blood which transport: Food, carbon dioxide and nitrogenous wastes Oxygen Answer: (1) Plasma, (2) Hemoglobin Question: When we breathe out, why does the air passage not collapse? Answer: Because it is supported by cartilaginous rings which prevent its collapsing. Question: Name the process of loss …

10th English Pre Board Examination (2018-19) VGS, Rohini, New Delhi School Name: Venkateshwar Global School, Sector 13, Rohini, Delhi 110085 India Time: 3 hours M.M: 80 Subject: English Class: X Date: 08/02/2019 General Instructions: The question paper is divided into three sections: Section A (Reading) 20 marks Section B (Writing & Grammar) 30 marks …

NCERT 10th Class (CBSE) Science: Work, Life and Leisure Quiz 20 Multiple Choice Questions related to NCERT 10th Class (CBSE) Science (Chemistry) Metals and Non-metals Quiz Elements can be classified as metals and non-metals. Metals are lustrous, malleable, ductile and are good conductors of heat and electricity. They are solids …

NCERT 10th Class (CBSE) Science: Chemical Reaction & Equations Quiz 34 Multiple Choice Questions related to NCERT 10th Class (CBSE) Science (Chemistry) Chemical Reaction & Equations Quiz In a physical change, no new substance is formed while in a chemical change, a new substance is formed. It should be cleaned …

NCERT 10th Class (CBSE) Science: Acids, Bases and Salts Quiz 37 Multiple Choice Questions related to NCERT 10th Class (CBSE) Science (Chemistry) Acids, Bases and Salts Quiz p in pH stands for ‘potenz’ in Germany and H is for hydrogen. When milk changes to curd, it becomes acidic due to …

CBSE board exams are due to begin soon. The CBSE class 12 board exams will begin on February 15 with Vocational subjects and conclude on April 4, 2019. CBSE Board Exam 2019: CBSE board exams are due to begin soon. The CBSE class 12 board exams will begin on February …