Question

Choose the odd one out from the following terms given below and name the category to which other belongs.

Detergents, X-rays, Sewage, Oil spills

Answer 1

Detergents:

1. Detergent is a water pollutant category.
2. Water contamination caused by chemicals (such as detergents) is a major global problem.

X-rays:

1. X-rays are in the category of the electromagnetic spectrum.
2. X-rays are a kind of high-energy electromagnetic radiation that penetrates the body.

Sewage:

1. Sewage is also a water pollutant category.
2. Wastewater is a contaminated kind of water that is produced by rainwater runoff and also because of human activities. It is called sewage.

Oil spills:

1. Oil spills are also a water pollutant category.
2. When oil and oil items are added to water, they tend to gather near the surface and float just on water.

The odd one out of given terms is X-rays; Category: the electromagnetic spectrum.