Explanation

White Corpuscles, or White Blood Cells (WBCs), or Leukocytes, act as a defense mechanism by fighting infections and diseases in the body.

They play a key role in the immune system.

They help fight infections and protect the body against foreign substances, such as bacteria, viruses, and other pathogens.

Explanation

 A biosensor is a sensor exploiting a bio-molecule 

It is used to measure the presence of a certain substance in a liquid.

Additional information:

For example,

biosensors include those used to detect viruses in the blood or measure glucose levels in the blood.

These are mainly point-of-care applications, where direct results are important.

Explanation

• BCG (Bacille Calmette-Guerin) vaccine is primarily used to protect against Tuberculosis (TB).
• It is typically administered to infants and children in countries with high TB prevalence.

Explanation

Thomas Alva Edison was an American inventor.

He developed many devices: 

• Electric power generation 
•  Mass communication
•  Sound recording
• Motion pictures.

Explanation

• First man who travelled in Space was Yuri Gagarin in 1961
• First man who Walk in Space was Alexei Leonov in 1965
• First man who Walk on Moon was Neil Armstrong in 1969
• Yuri Gagarin was a Soviet pilot and cosmonaut who, aboard the first successful crewed spaceflight, became the first human to journey into outer space.
  

Explanation

The pH of pure water (H20) is 7 at 25 °C

pH stands for "Potential Hydrogen"

Explanation

Sodium is a chemical element with the symbol Na and atomic number 11.

It is a soft, silvery-white, highly reactive metal.

Sodium is an alkali metal, being in group 1 of the periodic table.

Explanation

 Leukemia is cancer of the body's blood-forming tissues, including the bone marrow and the lymphatic system.

Many types of leukemia exist. Some forms of leukemia are more common in children. Other forms of leukemia occur mostly in adults.

**** 

RY18012023

Explanation

Chlorine is a strong oxidant that rapidly kills many harmful microorganisms.

Chlorine is a toxic gas.

Explanation

ایک ایسی بیماری ہے جس سے کمزوری ہوجاتی ہے اور جسم میں خون کی کمی ہوجاتی ہےScurvy

Scurvy is a disease caused by a serious vitamin C deficiency.

Not eating enough fruits and vegetables is the main cause of the disease. 

scurvy can lead to bleeding gums, loosened teeth and bleeding under your skin.

RK12-12-2022