The correct answer is: B. toxins
Algal blooms are a common occurrence in freshwater and marine ecosystems. They can be caused by a variety of factors, including nutrient pollution, climate change, and changes in water temperature. When algae blooms occur, they can release toxins into the water that can harm humans, animals, and aquatic life.
The toxins released by algae blooms can cause a variety of health problems, including skin irritation, respiratory problems, and gastrointestinal problems. In severe cases, exposure to algal toxins can even be fatal.
There are a number of things that can be done to prevent algal blooms, including reducing nutrient pollution, managing water temperatures, and restoring wetlands. It is also important to be aware of the risks of algal blooms and to take precautions if you are exposed to them.
Here is a brief explanation of each option:
- A. acidic – Algae blooms do not release acids into the water.
- B. toxins – Algae blooms release toxins into the water that can harm humans, animals, and aquatic life.
- C. bacteria – Algae blooms can release bacteria into the water, but this is not as common as the release of toxins.
- D. virus – Algae blooms do not release viruses into the water.