Explanation

• The skin is considered the largest organ of the human body.
• It covering an area of about 1.5-2 square meters (16-22 square feet).
• It weighing around 3-4 kilograms (7-9 pounds).

Last verified on 01-09-2026

Explanation

• Phosphorus is not among the top 10 most abundant elements in the Earth's crust.
• Most abundant element in Earth crust is Oxygen.
• Oxygen in the crust is (46. 1%).
• The chemical formula of oxygen (dioxygen) is O2.

List of 10 Most Abundant Elements in the Earth's Crust:

Last verified on 01-09-2026

Explanation

• Deuteranopia is a type of red-green colour blindness caused by the absence of functioning green-sensitive cones.
• It mainly affects the ability to distinguish green from red.
• It is an X-linked recessive condition.
• It is more common in males.

Last verified on 01-09-2026

Explanation

• Depression is classified as a psychological and medical mood disorder
• It disrupts normal work and social life.
• Low mood or ongoing sadness
• Loss of pleasure in hobbies.
• Changes in sleep or weight

Explanation

• Mumps and measles are prevented mainly through vaccination.
• Both mumps and measles are viral diseases.
• The MMR vaccine protects against Measles, Mumps, and Rubella.

Last verified on 11-08-2026

Explanation

• Main transmission: Contaminated water and food.
• Disease: Cholera.
• Causative organism: Vibrio cholerae.
• Major symptom: Severe watery diarrhea.
• Prevention: Safe water, sanitation, and good hygiene.

Last verified on 11-08-2026

Explanation

Dinosaurs are part of the reptile group, specifically a diverse group of reptiles that appeared during the Mesozoic Era.

They were the dominant terrestrial vertebrates for over 160 million years.

Explanation

Geologists are scientists who study a planet's solid features, like soil, rocks, and minerals.

Explanation

Heterotrophs are those organisms that cannot prepare their food from nature 

Hence depend on other organisms that produce food (autotrophs).

Non-green plants cannot make their food due to the absence of chlorophyll in their leaves

Explanation

The spleen is often referred to as the "graveyard of RBCs"

Because it is responsible for filtering and breaking down old, damaged, and worn-out red blood cells (RBCs).