Question

Read the following passage carefully and answer the questions that follow

. Man does not live by food alone. Water is vital to human health and fitness. Although it is not a nutrient as are carbohydrates, fats, proteins, vitamins and minerals. It, in fact, is a key nutrient as much as no life is possible without it. Whereas we can do for weeks without food, we cannot live without water longer than a couple of days. Water approximates 60 percent of the body weight of a human adult. The total amount of water in a man weighing 70 kilograms is approximately a little over 40 liters. It is an ancient solvent more substance and soluble in water than in any other liquid known So far. This makes it an ideal consistent of the body fluids which sustain life supporting chemical reactions. It dissolves varied products of digestion and transports them to the rest of the body. Likewise, it dissolves diverse metabolic wastes and helps drain them out of the body. Besides, it performs a variety of functions - some will known and well understood while others not so well appreciated yet vital. The no less important role of water is to dissipate the body heat efficiently, thereby regulating body‟s temperature. Water accomplishes this role ideally because it has high thermal conductivity ensuring rapid head transfer from one part to the other. Above all, water has a high specific heat, implying that it takes a lot of heat to raise the temperature of water and likewise much heat must be lost to lower its temperature. Drinking a lot of water is an inexpensive way to stay healthy. Even excess of water is harmless. Water therapy – drinking a litre or so the first thing in the morning is kidney friendly. The water regulation in the body is affected by hypothalamus in two ways, i.e. by creating the sensation of thirst which makes us drink water and by controlling the excretion of water as urine. If water regulation fails, medical emergency ensures.

Answer the following questions.

a) Why is water vital to human health and fitness?

b) More substances are soluble in water than in any other liquid. This helps water to perform two important functions in human body. Which are these? 1

c) What is water therapy?

d) From the passage find the synonyms of „Quantity‟ and „more than required‟.

e) What does this phrase „water has a high specific heat‟ mean?​

Answer 1

Answer:

1. Water is vital to human health and fitness. Although it is not a nutrient as are carbohydrates, fats, proteins, vitamins and minerals.

3. Water therapy – drinking a litre or so the first thing in the morning is kidney friendly. The water regulation in the body is affected by hypothalamus in two ways, i.e. by creating the sensation of thirst which makes us drink water and by controlling the excretion of water as urine. If water regulation fails, medical emergency ensures.

2. t dissolves varied products of digestion and transports them to the rest of the body. Likewise, it dissolves diverse metabolic wastes and helps drain them out of the body.

4. Amount, number, total etc