The correct answer is: C. Both suspended and dissolved impurities
Groundwater is water that is found beneath the Earth’s surface in aquifers. Aquifers are underground layers of rock, sand, or gravel that can hold water. Groundwater is usually free from suspended impurities, but it can contain dissolved impurities. Dissolved impurities are minerals or other substances that have been dissolved in the water. These impurities can come from the rocks and soil through which the water has traveled, or they can be from human activities, such as agriculture or industry.
Groundwater is an important source of drinking water for many people around the world. However, it is important to test groundwater for impurities before drinking it, as some impurities can be harmful to human health.
Here is a brief explanation of each option:
- Option A: Suspended impurities are particles that are large enough to float in water. They can come from the soil, rocks, or other materials through which the water has traveled. Suspended impurities can make water cloudy and can also be harmful to human health.
- Option B: Dissolved impurities are minerals or other substances that have been dissolved in water. They can come from the rocks and soil through which the water has traveled, or they can be from human activities, such as agriculture or industry. Dissolved impurities can make water taste bad and can also be harmful to human health.
- Option C: Both suspended and dissolved impurities can be found in groundwater. Suspended impurities are particles that are large enough to float in water, while dissolved impurities are minerals or other substances that have been dissolved in water. Both types of impurities can be harmful to human health.
- Option D: None of the above is not the correct answer. Groundwater can contain both suspended and dissolved impurities.