Final answer:
The amount of groundwater available in some areas of Texas could change due to variations in precipitation, overuse of aquifers, contamination from surface activities, and land subsidence caused by over-extraction of water.
Step-by-step explanation:
In areas of Texas where rainwater is absorbed into the ground and stored as groundwater, several factors can influence the amount of water available. These factors include:
- Variations in precipitation patterns which can affect the recharge rates of aquifers.
- Overuse or excessive pumping from wells, which can deplete aquifers faster than they are recharged.
- Contamination from surface activities like agriculture, industry, and urban development, which can affect water quality and availability.
- Physical changes such as land subsidence, which can be caused by the over-extraction of groundwater, potentially impacting the aquifers' ability to store water.
The change in the amount of water available to people in this area would primarily be caused by these factors, and variations in the local water cycle due to both natural and human activities.