Explanation

• Approximately 7–8% of an adult’s body weight.
• Approximately 8–9% of a child’s body weight.
• Approximately 9–10% of an infant’s body weight.

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Blood is a body fluid present in animals that consists of plasma, white blood cells, red blood cells, and platelets.

Humans have around 5 liters of blood in their bodies.

The volume of blood is approximately 5.5 liters in each adult male and 4.5 liters in female.

Explanation

When someone receives an “eye transplant,” they are given a donor cornea, the clear front part of the eye.

The corneal transplant requires a functioning retina and optic nerve to restore vision.

ND12_8_2023

Explanation

The solar eclipse occurs when the moon comes between the earth and the sun whereas the Lunar eclipse occurs when the Earth is between the sun and the moon.

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VU FIA UDC CONSTABLE PAST PAPER 31-12-2021

Explanation

Hydrogen and helium are the two lightest gases.

Helium is the second most abundant element in the universe, after hydrogen.

Helium has monatomic molecules.

It is the lightest of all gases except hydrogen.

Hydrogen is the lightest gas known.

It provides the maximum lift for balloons due to its very low density.

Explanation

The heart consists of four chambers in which blood flows.

Blood enters the right atrium and passes through the right ventricle.

The right ventricle pumps the blood to the lungs where it becomes oxygenated.

Explanation

Herodotus was a Greek writer who invented the field of study known today as `history'.

Born: Halicarnassus, Türkiye

Died: Thurii, Italy

Explanation

Mercury is the only metal that is liquid at normal temperatures. 

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Chemical compounds of mercury have found uses in batteries, in biocides in the paper industry, in paints, and on seed grain, as antiseptics in pharmaceuticals, as reagents in laboratories, and as catalysts.

Four other elements are liquids slightly warmer than room temperature.

They are:

• francium
• cesium
• gallium
•  rubidium

ND31-12-2022

SH10-8-2023

Explanation

The normal body temperature is: 37°C

The average normal body temperature is generally accepted as 98.6°F (37°C).

A temperature over 100.4°F (38°C) means you have a fever.

Additional Information:

Hypothermia is the term used for temperature less than 36.50°C

Mild Pyrexia is the term used for temperature (99-100°F)

Moderate Pyrexia is the term used for temperature (100-103°F)

Severe Pyrexia is the term used for temperature (103-105°F)

Explanation

The SI unit of electric charge is the coulomb, represented by the symbol C.

One coulomb is the amount of charge that passes through a conductor carrying one ampere of current for one second.

It's also equal to the charge of about 6.24 quintillion electrons or protons.

Explanation

A convex lens has either one or both of its surfaces curving outwards, that is, wider divergence from the plan at the center.

These lenses are used to correct long-sightedness (hypermetropia).