Science MCQs

Diarrhoea causes loss of fluids and electrolytes leading to dehydration.

Sugar and salt help the body absorb water preventing dehydration.

The larynx houses the vocal cords responsible for sound production.

The trachea is the tube connecting the larynx to the bronchi.

C-shaped cartilage rings keep the trachea open.

The diaphragm is the primary muscle involved in breathing.

During exhalation the intercostal muscles and diaphragm relax.

Energy release in respiration is controlled and slower than burning.

Pneumonia symptoms include cough fever rapid breathing and chest pain.

Vaccines hygiene and covering coughs help prevent pneumonia.