The answers can be explained as:
1. The Earth is composed of 29% landmass and 71% water. The majority of the water is present in the ocean, which covers approximately 97% of the water. The rest of the water is present in the glaciers, rivers, and lakes.
2. The hydrological cycle or water cycle is the circulation of water between different systems of the Earth. The organisms like plants, majorly contribute to the water cycle by transpiring.
3. Deforestation is the process of mass removal of trees or forests from the given geographical region. The region that is most affected by deforestation is Russia.
4. Farm irrigation is the process of applying water to the crops through the surface, sprinkle, or micro-irrigation. Human activities like pumping water and gas extractions can result in an aquifer holding excessive groundwater. Thus, too much groundwater can directly cause erosion and alter the ecosystem.
5. The mountains area if usually becomes warm, would cause an increase in the rainfall. The high temperature will result in more evaporation, eventually leading to more precipitation. Thus, the amount of rainfall received can be affected if the mountain area gets warmer.
To know more about the water cycle, refer to the following link:
https://brainly.com/question/15104672
