Explanation

 Short-sight defect could be corrected by using concave lens while long-sight defect could be corrected by using convex lens.

Explanation

Explanation

Pneumonia is a form of acute respiratory infection that affects the lungs

The lungs are made up of small sacs called alveoli, which fill with air when a healthy person breathes

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ND2-2-2023

Explanation

Pneumonia is often caused by Streptococcus pneumoniae.

It is a type of bacteria that leads to lung inflammation and infection.

It affecting breathing and oxygen intake.

Explanation

Aids way to spread is Touch

AIDS stands for Acquired Immunodeficiency Syndrome.

HIV stands for Human Immunodeficiency Virus.

HIV attacks the immune system of the body 

AIDS virus has single-stranded RNA

AIDS is not a genetic disorder

Explanation

• Hydrophobia, or fear of water, is a well-known symptom of rabies.
• A viral disease that affects the central nervous system.

Explanation

An epidemic is derived from Greek epi meaning upon or above and demos meaning people.

An epidemic occurs when a large number of people in a specific area and time experience a sudden outbreak of a disease, exceeding normal expectations.

Explanation

White blood cells (leukocytes) are part of the immune system.

They play a key role in defending the body against infections, diseases, and foreign invaders.

They help maintain overall health.

Explanation

In the early period, the endemic known as the "Black Death" is the plague.

The plague is a pandemic disease that devastated Europe in the 14th century, killing an estimated 75 to 200 million people, approximately 30-60% of Europe's population.

Explanation

The flu is caused by an influenza virus

Flu Risk Factors · chronic lung diseases such as asthma

ND2-03-2023