The preliminary syllabus for the academic year 2025-2026 will be published in the Studies service in the spring 2025 and the final syllabus will be published in Sisu by the end of June. Please note, ...

Condensation happens when water molecules in the air slow down enough to join together to form liquid water. In the water cycle, water from lakes, rivers, and oceans evaporate and enter the atmosphere ...

Carbon, a building block of life, is constantly moving through different environmental compartments such as biota, the atmosphere, the ocean, soil and sediment, as part of what is called ‘the global ...

Dead organisms are eaten by decomposers and carbon in their bodies is returned to the atmosphere as carbon dioxide. In some conditions decomposition is blocked. The plant and animal material may ...

This CO2 can return to the atmosphere or enter rivers; alternatively, it can react with soil minerals to form inorganic dissolved carbonates that remain stored in soils or are exported to rivers.

Among these processes, the sulfur cycle is crucial. Sulfur enters the atmosphere from both natural and human activities, with sulfur dioxide (SO2) being the primary contributor.

Water never leaves the Earth and its atmosphere. It simply moves around in what is called the water cycle. The water cycle is the continuous journey of water from oceans and lakes, to clouds ...

The study also finds that the time it takes for water to flow through plants (referred to as transit or turnover time) and return to the atmosphere is among the fastest in the global water cycle ...