How are the following sentences used to convey a message in the text: Nearly half (46%) of all water supply systems, descriptive language such as "grim picture" and "acute human health risks"?

The sentence "Nearly half (46%) of all water supply systems" is used to provide a statistic or fact about the state of water supply systems. This conveys the message that a significant portion of water supply systems are facing challenges or issues.

The descriptive language "grim picture" is used to emphasize the severity or seriousness of the situation regarding water supply systems. This conveys the message that the current state of water supply systems is concerning or alarming.

The phrase "acute human health risks" is used to highlight the potential dangers or threats to human health that are associated with the issues in water supply systems. This conveys the message that the problems with water supply systems have direct implications for the health and well-being of individuals.

"Nearly half (46%) of all water supply systems"

- This sentence conveys the magnitude of the problem: nearly half of all water supply systems are affected.
- It provides specific data to support the claim of widespread contamination.

"Grim picture" and "acute human health risks"

- These descriptive phrases evoke a sense of urgency and severity.
- They convey the negative consequences of the contamination, highlighting the potential for serious health problems.

Together, these sentences paint a vivid picture of a serious problem that poses a significant risk to human health. They serve to emphasize the need for immediate action to address the issue.