Explanation

Foot: Shoes (worn on the feet)

Head: Hat/Cap (worn on the head) 

This analogy represents items worn for protection

Last updated on 09-03-2026

Explanation

A battery is a device that can store:

• electrical energy in the form of chemical energy,

• and convert that energy into electricity

However, when a storage battery is being used in UPS it needs charging. 

At the time of charging the conversion of electrical energy into chemical energy is observed.

Explanation

Human respiration releases carbon dioxide and water as waste products

After the cells use oxygen to break down food for energy.

While breathing (ventilation) involves taking in oxygen

And releasing carbon dioxide through the lungs,

Cellular respiration is the chemical process within the cells

That breaks down glucose using oxygen to produce energy, CO2, and water. 

Explanation

Explanation

Light travels at about 300,000 kilometers per second in a vacuum with a refractive index of 1.0,

but slows down to 225,000 kilometers per second in water

and 200,000 kilometers per second in the glass.

ND16-3-2023

Explanation

• Plants absorb most of the water they need through their root hairs, which are small, thin extensions of the roots that increase the surface area for absorption.
• Root hairs are typically found in the rhizosphere, the region of soil surrounding the roots, and are responsible for absorbing water and nutrients from the soil.

Explanation

• The missing piece must fill the space, which is a 2x2 grid.
• The top-left quadrant of the missing piece needs to connect with the partial floral shape above and to the left.
• The top-right quadrant must connect with the shape above and to the right.
• The bottom-left quadrant must connect with the shape below and to the left.
• The bottom-right quadrant must connect with the shape below and to the right.

Explanation

Applying the Pattern

To find the fourth figure, apply the same pattern to the third figure.

• The third figure is a large square with a triangle inside.

• Following the established pattern, you must remove the outer shape (the square) and keep only the innermost shape.

• The innermost shape of the third figure is a hollow triangle.

This leads to a figure that matches option C.

Explanation

Applying the Pattern

To find the fourth figure, apply the same horizontal reflection to the third figure.

• The top half of the third figure (a series of concentric triangles) is reflected to become the bottom half of the fourth figure.

• The bottom half of the third figure (the same concentric triangles) is reflected to become the top half of the fourth figure.

This results in a figure that matches option B

Explanation

Applying the Pattern

To find the fourth figure, apply the same vertical reflection to the third figure (the circle).

• The top-left quadrant of the third circle (solid diagonal lines) moves to the top-right quadrant.

• The bottom-left quadrant (light horizontal lines) moves to the bottom-right quadrant.

• The top-right quadrant (black) moves to the top-left quadrant.

• The bottom-right quadrant (empty) moves to the bottom-left quadrant.

This results in a figure that matches option D.