The chemicals used on farms, golf courses, and domestic gardens are often to blame when groundwater becomes contaminated with a. acid b. nitrates c. fuel d. sewage

The correct answer is option B i.e. Nitrates.

Explanation:

1. The golf courses, or cricket and football grounds need a thick sheet of grass growing on them for their perfect performance. Farms do need grasses for animals.

2. Acid is not poured on the grasses to grow. Some nitrates poured on grass may convert into nitric acid, but its not significant.

3. Fuel and sewage are also not poured on golf courses or farms to grow grasses.

4. But nitrates are good fertilizers which leads to growth of grasses and plants, needed for farms and golf courses.

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