Explanation

• The nucleus is the control center of the cell.
• It regulates all vital activities like growth, reproduction, and metabolism.
• It contains genetic material (DNA).
• Ribosomes make proteins, and cytoplasm supports cell structure.

Last verified on 04-05-2026

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