Explanation

72 beats per minute is a good heart rate.

Complete answer:

The resting person usually has a pulse rate between 70 (beats per minute) and 80 (beats per minute).

Your risk of dying from a heart attack is lower if your heart rate is below 80 beats per minute.

A normal resting heart rate ranges from 60 to 100 beats per minute.

Explanation

Explanation

 Convection is the transfer of heat through the movement of a fluid, meaning it occurs in liquids and gases. 

Liquids: In liquids, warmer, less dense molecules rise, carrying heat with them. 

Gases: Similarly, in gases, hot molecules move more readily, transferring heat through the space

Explanation

Plasma is the fourth state of matter, following:

1. Solids
2. Liquids
3. Gases

It consists of ionized gases with equal numbers of positively and negatively charged particles.

Explanation

Carrot is a good source of Vitamin A. 

Deficiency of Vitamin A causes nigh blindness.

Explanation

Hydrogen is the most abundant element in the universe.

it is about 75 percent of its normal matter and was created in the Big Bang.

Additional information:

Oxygen is the most abundant element in the earth`s crust.

Calcium is the most abundant mineral in the human body.

Explanation

Vitamin A is essential for the formation of rhodopsin, a pigment in the retina that helps with vision in dim light.

Deficiency of Vitamin A can lead to night blindness.

Explanation

The core principle behind a hydrogen bomb is the fusion of light atomic nuclei.

Specifically isotopes of hydrogen (deuterium and tritium), under extremely high temperatures and pressures. 

Explanation

Atomic nuclei consist of electrically positive protons and electrically neutral neutrons.

The nucleus makes up much less than. 01% of the volume of the atom,

but typically contains more than 99.9% of the mass of the atom.

Explanation

The number of bones in a human skull is 22

The human skull is generally considered to consist of twenty-two bones

• eight cranial bones
• fourteen facial skeleton bones

**

while

300 bones are there in a newborn infant.

The human hand has 27 bones