The correct answer is: A. Algal Blooms.
Algal blooms are a rapid increase in the population of algae in a water body. They can occur naturally, but are often caused by human activities such as pollution. Algal blooms can have a number of negative effects on the environment, including:
- Depleting oxygen levels in the water, which can kill fish and other aquatic life.
- Producing toxins that can harm humans and animals.
- Interfering with recreation and tourism.
Sulphur dioxide is a gas that is released into the atmosphere by burning fossil fuels such as coal and oil. It can also be released from industrial processes. Sulphur dioxide can react with water vapor in the atmosphere to form sulphuric acid, which can then fall to the ground as acid rain. Acid rain can damage plants and animals, and can also pollute water bodies.
Algal blooms are often a sign of sulphur
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