Which of the following is not a water pollutant ?

The correct answer is (d), Sulphur Dioxide.

Sulphur dioxide is a gas that is released into the atmosphere when fossil fuels are burned. It can also be released from industrial processes. Sulphur dioxide can cause acid rain, which can damage forests and aquatic ecosystems. It can also cause respiratory problems in humans.

Zinc, copper, and nickel are all metals that can be found in water. They can be released into the water from industrial processes, mining, and agriculture. These metals can be toxic to aquatic life and can also cause health problems in humans.

Here are some additional details about each of the options:

• Zinc is a metal that is used in a variety of products, including batteries, paints, and alloys. It can be released into the water from industrial processes, mining, and agriculture. Zinc can be toxic to aquatic life and can also cause health problems in humans.
• Copper is a metal that is used in a variety of products, including electrical wiring, plumbing, and coins. It can be released into the water from industrial processes, mining, and agriculture. Copper can be toxic to aquatic life and can also cause health problems in humans.
• Nickel is a metal that is used in a variety of products, including stainless steel, batteries, and coins. It can be released into the water from industrial processes, mining, and agriculture. Nickel can be toxic to aquatic life and can also cause health problems in humans.