Which of the following cannot be used for making lenses? A. Plastic B. Soil C. Glass D. Water

Plastic
Soil
Glass
Water

The correct answer is B. Soil.

Soil is not a transparent material, which is a necessary property for a lens. A lens is a curved piece of transparent material that can bend light rays. This bending of light rays can be used to focus an image or to magnify an object.

Plastic, glass, and water are all transparent materials that can be used to make lenses. Plastic is a relatively inexpensive material that is easy to work with. Glass is a more durable material that is often used for high-quality lenses. Water is a natural material that can be used to make simple lenses.

Soil is not a transparent material and cannot be used to make lenses.