Explanation

• Marasmus is a severe form of protein-energy malnutrition that affects infants and young children, typically under the age of 5.
• It is characterized by wasting of fat and muscle, stunted growth, and developmental delays.

Explanation

Copper is an essential mineral found in various foods, including:

• Whole wheat
• Bananas
• Peas
• Prunes
• Oysters
• Liver
• Kidney
• Grains (quinoa, brown rice)
• Legumes (lentils, chickpeas)

Copper is Crucial for:

• Formation of red blood cells.
• Helps with the functioning of the nervous system.

Note: According to Sindh Textbook Board, Jamshoro

Explanation

• Peanuts are a legume and a good source of protein, containing about 20.5 grams of protein per 100 grams.
• Apples: 0.3 grams of protein per medium-sized fruit
• Watermelon: 0.6 grams of protein per cup
• Mango: 1.4 grams of protein per cup

Explanation

The examples of inherited traits in humans, determined by an individual's genetic makeup:

• Colour of hair, skin, and eyes
• Blood group (A, B, AB, O)
• Shape of nose and lips (facial features)

These traits are passed down from parents to offspring through the transmission of genetic information.

Explanation

• The skin is the largest organ of the body, covering the entire surface of the body. 
• It has a total area of about 22 square feet (2 square meters).
• It weighs around 6 pounds (2.7 kilograms) in adults.

Explanation

• Lungs are two soft, spongy, large balloon-like organs located in the chest cavity, specifically in the thoracic cavity.
• They are responsible for exchanging oxygen and carbon dioxide through the process of respiration.

Explanation

• Elephants have large ears that help them to control their body temperature. 
• The ears are made up of thin skin and have many blood vessels close to the surface, which allows them to release excess heat.
• By flapping their ears, elephants can create a breeze that helps to cool themselves down.

Explanation

• When you swallow food, sweets, or drinks, they pass through the esophagus and enter the stomach.
• Where they are mixed with digestive enzymes and acids to break down proteins, carbohydrates, and fats.

Explanation

• The revolution of the Earth around the Sun causes the changing seasons, including Summer and Winter.
• As the Earth's axis is tilted and different parts of the planet receive varying amounts of sunlight throughout the year.

Explanation

• The correct answer is: Simple machines magnify the force you use.
• This statement is true for many simple machines, such as levers, pulleys, and wheel and axle systems.
• Which are designed to multiply the force you apply, making it easier to lift, move, or apply force to an object.