Nios Science and Technology (212) Tutor Marked Assignment 2021-22

Nios Science And Technology (212) Tutor Marked Assignment 2021-22 Read question for Nios Science and Technology (212) | Download Answer  1. Answer any one out of the following questions in about 40-60 (A) Mention the factors responsible for variation in forces of attraction between any two celestial objects in the universe. (B)Explain thermal expansion process with the help of diagram and two suitable examples from daily life. 2. Answer any one out of the following questions in about 40 to 60 words. (b) Write the formula of the compounds. (See Lesson-3) (i) Ca2+ PO43– (ii) NH4+ CO32– (iii) Al3+ SO32– (iv) C4+ Cl 3. Answer any one out of the following questions in about 40 to 60 words. (a) There are some unspecialized cells in our body which have capacity to undergo mitosis and can redivide to produce number of identical cells. Name these types of cells and from where are these cells obtained in an embryo and adults. (i) If the cerebellum is not functioning properly, which activities of our body would get affected? (ii) Which part of the brain controls all involuntary actions? 4. Answer any one out of the following questions in about 100 to 150 words. (a) You select any one device for sound communication other than independent, oral or printed communication and explain its working with the help of diagram. Explain the following: Ionic compounds conduct electricity in molten state but covalent compounds cannot conduct electricity in molten state. The melting point of naphthalene is 353.4K the melting point of sodium chloride is 1074K. 2. Explain Redox Reaction with example. 5. Answer any one out of the following questions in about 100 to 150 words. A group of tall, elongated cells having cilia at their free ends, are found in the inner lining of the stomach and intestine. Name these tissues these and also mention their functions in the body? A person is suffering from muscular pain, internal bleeding,...