Question

42)Look at the following picture and express your views on it in about five sentences.

this is second question of 43

43) Make notes or write a summary of the following passage. The epidemic of heart attacks has been attaining alarming proportion in recent times causing grave concern specially to the medical fraternity. To contain and control the increasing death and disability from heart attacks and to focus on public awareness and their involvement at global level, the World Health Organization (WHO) and the World Heart Federation observed September 24th as the World Heart Day.

What causes heart attacks? Dr H.S. Wasir, Chief Cardiologist and Medical Director, Batra Hospital and Medical Research Centre lists four main habits which adversely affect the heart health. These are lack of physical exercise, wrong eating habits, cigarette smoking and excessive alcohol consumption, and stressful lifestyle. The importance of physical exercise in minimizing the incidence of heart attacks cannot be underestimated. "Physical exercise," says Dr. Wasir, "plays a major role in achieving a long and healthy life in general and prevention of heart attacks in particular." There are several studies showing that physically active people have higher longevity than those sedentary or physically inactive

44)Identify and correct the errors in the following sentences.

a) One of his sons are a doctor by profession in the United States of America for

nearly ten years.

b) Though his mother tongue is Tamil but he always c) The workers formed an union for their welfare. d) He did not listen to his father's advise

(e) She said that she will mind if I refused her offer.
speaks in English.​

Answer 1

Answer:

Na

2

CO

3

+CH

3

COOH→CO

2

+H

2

O+CH

3

COONa

Mass of reactants =5.3+6=11.3 gm

Mass of products =2.2+0.9+8.2=11.3 gm

This shows, that during a chemical reaction, the mass of reactant = mass of the product.

Hence, it shows the law of conservation of mass.

Answer 2

Answer:

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