SCIENCE AND TECHNOLOGY (212) | NIOS SOLVED ASSIGNMENTS (2020-21) | TMA-20-21


 SCIENCE AND TECHNOLOGY (212)

NIOS SOLVED ASSIGNMENTS 2020-21

Note:  (i) All questions are compulsory. The marks allotted for each question are given besides the questions.

(ii) Write your name, enrollment number, Al name and subject on top of the first page of your answer sheet.

Q. 1. (A) Explain thermal expansion process with the help of diagram and two suitable examples from daily life.

Ans. The behavior of gasoline pumped on a hot day provides an example of liquid thermal expansion in response to an increase in temperature. When it comes from its underground tank at the gas station, the gasoline is relatively cool, but it will warm when sitting in the tank of an already warm car.

Q. 5. (A) 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?

Ans. Villi are the long finger like projections present in the small intestine, it’s function is to increase surface are for absorption of food.

Explanation:

The small intestine is the part of the gastrointestinal tract where much of the digestion and absorption of food takes place. 

NIOS SOLVED ASSIGNMENTS (2020-21) PDF FILE 

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