Answer / guest

A man? body is always at work-whether awake or asleep. When
a man is walking, eating, talking, riving a car, we say he
is at work since hit activity is clearly visible. But even
when he is asleep he is working for, although he may be at
perfect rest, many parts of his body are working. His heart
is throbbing, the blood is circulating, the process of
digestion is going on. It is a common scientific principle
that energy is consumed whenever any action takes place. So
also for man?s activity energy is required.
This energy is provided to man through
the food he takes.
Thus food is the source of energy for a man, in the same way
as the fuel is the source of energy for a steam engine. The
food provioes fuel for the human engine. It is changed so
that it can dissolve in the blood and a very slow process of
burning takes place in the human body. The energy that is
thus released helps the human body to perform functions and
the heat keeps the body warm. Thus the need for food which
was not supplied. Thus the main functions of the food can be
summarized as follows :-
(1) It supplies the energy for doing work and keeping the
body warm.
(2) It makes good the wear and tear of every day life.
(3) It provides necessary substances for the growth of the
body.

Answer / sarita

food is the energy source of all organism

Name the indian states in which river ganga flows?

19 Answers   College School Exams Tests, Intel, Yes Bank,

---

How does common salt help in separating soap from the solution after saponification ? 1 By decreasing solubility of soap 2 By increasing solubility of soap 3 By decreasing density of soap 4 By increasing density of soap

4 Answers  

---

Isotopes are separated by 1 Filtration 2 Sublimation 3 Distillation 4 Crystallization

10 Answers   Bank Exams, dpdc, MPSC, NIFT, State Bank Of India SBI,

---

the basic approach to science was established by:

0 Answers   APPSC, Government,

---

Why is it necessary to cook food ?

1 Answers  

---

Explain the Evolution of Science as a discipline in the Medieval Period

0 Answers   Mahatma Gandhi University,

---

What is the morphology ?

1 Answers  

---

What are soaps? 1 Salts of silicates 2 Esters of heavy fatty acids 3 Sodium or potassium salts of heavier fatty acids 4 Mixture of glycerol and alcohols

2 Answers  

---

The age of most ancient geological formations is estimated by 1 Potassium-argon method 2 Ra-Si method 3 C14method 4 Uranium-lead method

2 Answers  

---

The two elements that are frequently used for making transistors are 1 Boron and aluminium 2 Silicon and germanium 3 Iridium and tungsten 4 Niobium and columbium

2 Answers  

---

Describe the evolution of science and its impact on society

0 Answers   Mahatma Gandhi University,

---

plants in a food chain are actually the

2 Answers   Competitive Exams, Stenographer,

---