Questions

Scientists estimate the volume of blood in a human body to be approximately 7 percent of body weight. An average adult body with a weight of 150 to 180 pounds will contain approximately 4.7 to 5.5 liters of blood. An average child with a body weight of 80 pounds will have approximately half the amount of blood as an adult.

The amount of blood in a human body varies, depending on factors such as age, sex, overall health and even where a person lives. For example, men tend to have more blood than women of comparable size and weight.

Interestingly, people who live at high altitudes may have up to two liters of extra blood compared to those who live at lower altitudes. Because the air at higher altitudes has less oxygen, people who live at high altitudes need extra blood to deliver the right amount of oxygen to their lungs.

We know that 1 Pint = 0.473 liters

Hence, an average amount of blood in the human body = 4.7 - 5.5 lit = 10 - 12 pints.

Add the letter 'G' to the word 'ONE' and it become's 'Gone' which means disappear.

The weight of the man mg is acting on the floor. As the lift is moving up with an acceleration, say a, the man too in it is having this acceleration. The force producing this acceleration is ma. By Newton's third law, this force will have an equal reaction pressing the floor equal to ma. Therefore the total resultant reaction on the floor is mg+ma = m(g+a) which is mg, the weight of the man. So (a) is correct.

6 April was declared as the International Day of Sport for Development and Peace (IDSDP) by the UN General Assembly. On the occasion of the 2017 International Day of Sport for Development and Peace (IDSDP), the United Nations Office on Sport for Development and Peace (UNOSDP) launches the digital campaign #WePlayTogether to encourage organizations and individuals.

The World Health Organization is a specialized agency of the United Nations that is concerned with international public health. It was established on 7 April 1948, Headquartered in Geneva, Switzerland.

Dr Soumya Swaminathan has been appointed the deputy director general for programmes (DDP) of World Health Organisation (WHO). She also holds a key position as secretary in the department of health research, ministry of health and family welfare.