Explanation

• Vitamin A deficiency → Night blindness (Nyctalopia)
• Vitamin A is important for vision and immune function.

Additional information:

• Vitamin K is essential for blood clotting.
• Vitamin D helps in calcium absorption and bone mineralization.
• Vitamin B1 supports nerve function and energy metabolism.

Last verified on 01-02-2026

Explanation

• A wind speed of 10–14 km/h (approximately 6–9 mph or 5–8 knots)
• Classified as a Gentle Breeze (Force 3) to a light breeze (Force 2)

Last updated question by NS on 2 MAY 2026

Explanation

• Volcanic rocks are a type of extrusive igneous rock.
• They are formed from magma that erupts and cools rapidly on or above the Earth's surface.
• Common examples include basalt, andesite, and rhyolite

Last updated question by NS on 2 MAY 2026

Explanation

• The correct food chain, representing the flow of energy from producer to top predator, is:
• Grass (Producer): Produces energy through photosynthesis
• Grasshopper (Primary Consumer): Herbivore that eats grass
• Frog (Secondary Consumer): Carnivore that feeds on grasshoppers.
• Snake (Tertiary Consumer): Carnivore that feeds on frogs.
• Eagle (Apex Predator): Top predator that feeds on snakes

Last updated question by NS on 2 MAY 2026

Explanation

• The logical order of the medical sequence is: Patient, Diagnostic, Doctor, Treatment, Bill
• Patient: The person seeking care.
• Doctor: The professional providing care.
• Diagnostic: The doctor examines/diagnoses the patient.
• Treatment: The action taken to treat the illness.
• Bill: The final step for services rendered.

Last updated question by NS on 2 MAY 2026

Explanation

• The study of ancient societies through remains and artifacts is called archaeology.
• It focuses on ruins, tools, coins, and old structures.
• It helps us understand past human civilizations.

Last verified on 02-05-2026

Explanation

• The largest endocrine gland is the Thyroid gland.
• It is located in the neck, below the larynx.
• Produces hormones like thyroxine (T4) and triiodothyronine (T3).
• Controls metabolism, growth, and energy levels.

Last verified on 02-05-2026

Explanation

• The ideal depth for fish growth is around 100 fathoms.
• A fathom equals about 6 feet, so 100 fathoms ≈ 600 feet (≈180 meters).
• This zone has suitable light, temperature, and oxygen levels.
• It supports better food availability for marine life.

Last verified on 02-05-2026

Explanation

• Whales evolved from land-dwelling mammals.
• Their ancestors gradually adapted to aquatic life.
• Over millions of years, they moved from land to sea.
• They developed flippers instead of legs for swimming.
• This is an example of evolution and adaptation.

Last verified on 26-04-2026

Explanation

• Quinine is a medicine used to treat Malaria.
• It is obtained from the bark of the Cinchona tree.
• Native to South America (Andes region).
• One of the earliest effective treatments for malaria.

Last verified on 02-05-2026