Explanation

• As temperature increases, the heat energy of a substance also increases.
• This is because temperature is a measure of the average kinetic energy of the particles in a substance, and as temperature increases, the particles gain kinetic energy and therefore heat energy.

Explanation

• It takes Mercury approximately 88 Earth days (specifically 87.97 days) to complete one orbit around the Sun
• This means that Mercury's year is equal to 88 Earth days
• Distance: Approx. 58 million km from the Sun
• But its rotation takes nearly 59 days. 
• Speed: ~47 km/s

Last updated question 2 May 2026 by NS

Explanation

• The skeleton is the framework of the body.
• It is composed of 206 bones that provide support, protection, and movement.
• It is the structural system that gives the body its shape and allows for various physical activities.

Explanation

Minerals such as Potassium, Fiber, Iron, and Selenium are found in fruits, vegetables, grains, and seafood.

Explanation

• Plants absorb Carbon Dioxide (CO2) during the daytime through tiny openings on their leaves called stomata.
• They use this carbon dioxide, along with water (H2O) and light energy from the sun, to produce glucose (C6H12O6) and oxygen (O2) through the process of photosynthesis.

Explanation

• Iron is essential for making hemoglobin, a protein in red blood cells that carries oxygen.
• Iron deficiency can lead to anemia, causing fatigue and weakness.
• Copper mineral builds red blood cells.
• It is also involved in the building of bones.

Note: Copper is also right answer According to Sindh Textbook Board, Jamshoro

Explanation

Vitamin B Complex, specifically Vitamin B1 (Thiamine), prevents:

• Beriberi, a disease that drains energy
• Various skin diseases, such as dermatitis and acne
• Nervous system disorders, like neuropathy and nerve damage

Vitamin B Complex is essential for:

• Energy production
• Nervous system function
• Healthy skin, hair, and nails
• Brain function and mood regulation

Explanation

• The ribcage, also known as the thoracic cage.
• It is a bony structure that encloses and protects the lungs, heart, and other organs in the thoracic cavity.
• It is composed of 24 ribs, the sternum (breastbone), and the 12 thoracic vertebrae.

Explanation

• Omnivores are animals that eat both plants and animals.
• They have adaptations that allow them to digest and extract nutrients from a wide variety of food sources, including fruits, leaves, insects, small animals, and even carrion.
• Examples of omnivores include humans, bears, pigs, chimpanzees, and raccoons.
• Only plants: Herbivores (e.g., cows).
• Only animals: Carnivores (e.g., lions).

Explanation

Vitamin D is found in:

• Milk (fortified milk and dairy products)
• Cod liver oil (and other fatty fish oils)
• Sunlight (our bodies produce vitamin D when exposed to sunlight)

Additionally, vitamin D is also found in:

• Fatty fish (like salmon, mackerel, and sardines)
• Fortified cereals and orange juice
• Egg yolks
• Mushrooms (some types, like shiitake and portobello)