Explanation

Milk, meat, eggs, and pulses are all rich sources of Protein, which is essential for:

• Building and repairing tissues
• Producing enzymes and hormones
• Maintaining healthy muscles, bones, and organs

Explanation

"Dehydration" refers to the removal of water from a substance or organism.

It involves the loss of water, which can lead to various effects, such as dryness or reduced function.

Explanation

• When the rectangular piece of wood is kept in position A.
• Its entire weight is concentrated on a smaller area, resulting in maximum pressure on the table.

Explanation

• Cell division is the process by which a cell splits into two daughter cells, resulting in the multiplication of new cells.
• This process is essential for growth, development, and tissue repair in living organisms.

Explanation

• Xylem is the vascular tissue responsible for transporting water and minerals from the roots to the leaves through continuous tubes.
• It also known as xylem vessels or tracheary elements.

Explanation

A movable pulley decreases the amount of input force needed to lift a load.

By allowing the user to apply force over a longer distance.

Explanation

• Respiration requires two main materials: Glucose (C6H12O6) and Oxygen (O2).
• Glucose is the energy source that is broken down to produce energy.
• While Oxygen is necessary for the process of cellular respiration to occur.

Explanation

• Increasing the weight is not a way to reduce friction.

Ways to reduce friction:

• Smoothing and polishing surfaces
• Reducing contact area
• Using oil and lubricants
• Using ball bearings and rollers

Explanation

• An open circuit provides an incomplete path for the current to flow through.
• As the circuit is broken or disconnected, preventing electricity from flowing.

Explanation

• A pulley system is commonly used to raise and lower flags.
• As it allows for a change in direction of the force and makes it easier to lift the flag to a higher position.