Water presence refers to the detection, measurement, and monitoring of water in various environments such as soils, rocks, and biological samples. This research area involves the use of various techniques and instruments, such as ground-penetrating radar, infrared spectroscopy, and satellite imagery, to study the distribution, movement, and properties of water in different settings. Research in water presence is crucial for understanding the hydrological cycle, water availability, and the impact of water on environmental processes and ecosystems. It also plays a significant role in various fields such as agriculture, geology, hydrology, and environmental science, as water presence influences soil moisture levels, groundwater availability, and the health of plants and animals. Overall, the study of water presence is essential for managing water resources, predicting natural disasters like floods and droughts, and mitigating the effects of climate change on water availability and quality.