Explanation

The discoverer of the cause of Malaria is Ronald Ross

Alphonse Laveran, a French army doctor, described the malarial parasite--

And proposed that it caused malaria in 1880.

Explanation

Alfred Nobel was a chemist from Sweden. 

Dynamite was invented by Alfred Nobel in the 1860s.

He is also the founder of the Nobel Prize

He also invented Nitro-glycerine in 1875.

Alfred Nobel  Born: October 21, 1833, Stockholm, Sweden

Alfred Nobel  Died: on December 10, 1896, in Sanremo, Italy

Alfred Nobel Full name: Alfred Bernhard Nobel

Additional Information

The first Noble Prize was awarded on 10th December 1901

The first Noble Prize was awarded in Stockholm, Sweden.

Explanation

Samuel Colt patented the revolver in 1836.

He revolutionizing firearms with its rotating cylinder.

Explanation

James Simpson, a Scottish doctor, is credited with discovering the anesthetic properties of chloroform in 1847

Explanation

On May 4th, 1984 four papers by Robert C. Gallo's group were published in Science describing a new human retrovirus virus as the probable cause of AIDS.

Explanation

The demographic transition model was initially proposed in 1929 by demographer Warren Thompson.

Explanation

Robert Watson-Watt was a Scottish engineer and inventor who is credited with developing the first practical radar system.

He demonstrated the first radar system in 1935.

He was knighted in 1942 for his contributions to the development of radar technology.

Radar (Radio Detection and Ranging) is a system that uses radio waves to detect and locate objects, and it played a crucial role in World War II.

Explanation

• 60%  is the proportion of water to total body weight in a normal person
• ***
• The amount of water in the body changes slightly with age, sex, and hydration levels.
• While the average percentage of water in a person's body is around 60%, the percentage can vary from roughly 45–75%.
  
• According to Mitchell and others (1945)
  

Explanation

• The technique used to open the airway of an unconscious person is:  the head is tilted and the chin is lifted
• ***
• ● There are three methods to open an airway, which are
• a neck lift,
• chin lift, and
• jaw thrust. 
  
  

Explanation