Vandforekomster

Vandforekomster refer to the natural occurrences of water on Earth. These can be broadly categorized into surface water and groundwater. Surface water includes bodies of water like oceans, seas, lakes, rivers, streams, and glaciers. Oceans and seas, covering the vast majority of the Earth's surface, are saline water bodies. Freshwater surface water includes lakes, which are still bodies of water, and rivers and streams, which are flowing watercourses. Glaciers and ice caps represent significant reserves of frozen freshwater.

Groundwater, on the other hand, is water that infiltrates the ground and is stored in underground layers of rock and soil called aquifers. This water can be accessed through wells or emerge at the surface as springs. The availability and quality of both surface water and groundwater are crucial for ecosystems and human activities, including drinking water supply, agriculture, and industry. Factors such as rainfall, geological formations, and human impact influence the distribution and sustainability of these water resources. Understanding vandforekomster is fundamental to water management and conservation efforts.