Search
- Filter Results
- Location
- Classification
- Include attachments
- https://geo.libretexts.org/Courses/Lumen_Learning/Earth_Science_(Lumen)/19%3A_Deserts/19.01%3A_DesertsThis page discusses deserts as arid regions covering one-third of Earth's surface, formed by erosion and weathering processes. They host specialized flora and fauna adapted to extreme conditions. Vari...This page discusses deserts as arid regions covering one-third of Earth's surface, formed by erosion and weathering processes. They host specialized flora and fauna adapted to extreme conditions. Various desert types are defined by precipitation and temperature, with unique geological features like dunes and stone pavements. The text explores human interaction, cultural significance, and threats like desertification.
- https://geo.libretexts.org/Courses/Lumen_Learning/Earth_Science_(Lumen)/18%3A_Climate_and_Climate_Change/18.01%3A_Climate_Systems_and_ChangeThis page discusses the factors influencing climate, such as latitude, circulation, and ocean currents, along with the Köppen classification system of climate zones. It highlights climate change's imp...This page discusses the factors influencing climate, such as latitude, circulation, and ocean currents, along with the Köppen classification system of climate zones. It highlights climate change's impacts on ecosystems, agriculture, and projections of rising temperatures due to human activities. The text emphasizes the severe consequences of climate change, including extreme weather, loss of biodiversity, and agricultural challenges.
- https://geo.libretexts.org/Bookshelves/Geography_(Physical)/California_Geography_(Patrich)/08%3A_Klamath_and_The_Modoc_Plateau/8.03%3A_MODOC_PLATEAUThe Modoc Plateau, located in northeastern California, is characterized by a diverse geography and ecology, comprising the Modoc Plateau and Southern Cascades. This region, with elevations ranging fro...The Modoc Plateau, located in northeastern California, is characterized by a diverse geography and ecology, comprising the Modoc Plateau and Southern Cascades. This region, with elevations ranging from 3,000 to over 14,000 feet, is rich in wildlife and has unique aquatic communities. It features significant volcanic history, notably seen in Lava Beds National Monument, which contains numerous volcanic formations and the largest concentration of lava tubes in North America.
- https://geo.libretexts.org/Courses/Lumen_Learning/Earth_Science_(Lumen)/11%3A_Ocean_Water_and_Life/11.04%3A_Ocean_OrganismsThis page discusses the ocean's vital resources, which require sustainable management due to threats like overfishing and harmful practices. It highlights the adaptation of organisms to harsh marine e...This page discusses the ocean's vital resources, which require sustainable management due to threats like overfishing and harmful practices. It highlights the adaptation of organisms to harsh marine environments and the importance of biodiversity in coral reefs, which are under stress from pollution and climate change. Additionally, it describes unique ecosystems at hydrothermal vents, where life thrives on chemosynthesis, supported by bacteria and housing various marine species.
- https://geo.libretexts.org/Courses/Lumen_Learning/Earth_Science_(Lumen)/06%3A_Surface_Water/6.01%3A_Earths_Fresh_WaterThis page discusses the vital role of water on Earth, covering its properties in solid, liquid, and gas states. It notes that 97% of Earth's water is saltwater, with just 3% fresh water, mainly as ice...This page discusses the vital role of water on Earth, covering its properties in solid, liquid, and gas states. It notes that 97% of Earth's water is saltwater, with just 3% fresh water, mainly as ice. The hydrologic cycle, driven by solar energy, moves water through evaporation, condensation, and precipitation. Concerns about groundwater overuse and the importance of water conservation policies are addressed.
- https://geo.libretexts.org/Courses/Lumen_Learning/Earth_Science_(Lumen)/10%3A_Geologic_History/10.05%3A_Early_EarthThis page envisions a film chronicling Earth's 4.5 billion-year history, detailing its transition from an inhospitable state to a thriving biosphere. It highlights significant geological transformatio...This page envisions a film chronicling Earth's 4.5 billion-year history, detailing its transition from an inhospitable state to a thriving biosphere. It highlights significant geological transformations, the emergence of life through simple organisms like cyanobacteria that enriched the atmosphere with oxygen, and the resultant formation of the ozone layer.
