Final answer:
The competition for water in the southwestern United States and the bombing of water tanks in the Middle East are both examples of how water has become a highly contested commodity around the world. These conflicts over water resources signify the global water crisis that stems from a scarcity of accessible freshwater.
Step-by-step explanation:
An example of the extent to which water has become a highly contested commodity around the world includes both the competition for water in the southwestern United States and the bombing of water tanks in the Middle East. Therefore, the correct answer is c. Both answers are correct. This is indicative of the larger issue at hand, as water scarcity and stress have intensified globally due to factors like population growth, environmental degradation, and climate change.
In the Southwest United States, rapid growth and large populations have placed significant strain on water resources, particularly in arid states like Nevada. For example, Las Vegas relies heavily on water from Lake Mead, which is itself experiencing lower water levels. In the Middle East, political instability and conflict have resulted in the targeting of water infrastructure, which exacerbates the water shortage problems in an already water-stressed region. These issues contribute to the potential for internal conflict and wars over water resources.
Understanding that only a small percentage of Earth's water is freshwater and accessible for human use illuminates why this essential resource has become a point of contention on a global scale. As various countries and regions grapple with their respective water challenges, international tension and conflict over water sources are likely to persist and potentially escalate.