Geography, physical and human geography

Earth Science Picture of the Day Each day a different image or photograph is featured, with an accompanying caption, which deals with various topics in Earth Science

Earthshots images showing recent environmental events

Earth Sciences origin of Earth and Oceans, Earth Structure and Tectonics, Seafloor Spreading and Plate Tectonics, Ocean Basin Topography, Seawater Physical Properties, Seasons, Energy, and Heat Transport, surface Ocean Circulation, climate Phenomena: El Nino, Monsoons, Hurricanes, Sediments and Ocean History, Waves, coastlines and Beaches, Marine Resources

Earth systems many topics for schools

Environmental Science & Forestry landscape architecture, aquatic fisheries science, biotechnology, chemistry, conservation biology, forest ecosystems, environmental and forest biology, environmental science, environmental Studies, forest engineering, forest health, environmental and resource engineering, natural resources information systems

Geography exchange: resource centre causes of earthquakes, plate tectonics and continental drift, composite volcano, how glaciers form and flow, cross section of rivers, acid rain, ozone layer, water pollution

Geophysical exploration

Globe gallery a tip

Internet geography physical and human geography, coasts, earthquake - cause / effects, ecosystems, biomes, tropical rainforest, glaciation, erosion, landforms, limestone, erosion, karst, national parks, plate tectonics, rivers, water cycle, basins, erosion, volcanoes, weather and climate, rain, pressure, landuse, migration, population, density, urbanisation, million cities, counterurbanisation, economic geography, employment structures, industry - systems / primary / secondary / tertiary, country studies, environmental geography, environmental problems

National geographic a tip

National Geophysical Data Center (NGDC) NOAA's National Geophysical Data Center (NGDC) provides scientific stewardship, products, and services for geophysical data from the Sun to the Earth and Earth's sea floor and solid earth environment, including Earth observations from space

Oceanography Structure of the Oceanic Lithosphere, Plate Tectonics and Seafloor Spreading, Seafloor Topography

Physical Environment geography, physical geography, physical environment, Michael Ritter, climate, weather, landforms, tectonics, earthquakes, geomorphology, hydrosphere, lithosphere, biosphere, atmosphere, fluvial, glaciers, soil, biomes, biogeography

Physical Geography Physical Geography, Introduction to Physical Geography, Maps, Remote Sensing, and GIS, The Science of Physical Geography, Introduction to Systems Theory, The Universe, Earth, Natural Spheres, and Gaia, Energy and Matter, Introduction to the Atmosphere, Introduction to the Hydrosphere, Introduction to the Biosphere, Introduction to the Lithosphere

Understanding Earth

United States geological survey

Worldprocessor a tip

Horizontaal

Miscellaneous geography topics, soil chemistry

visit also Environment

Aquastat the objective of aquastat is to provide users with comprehensive information on the state of agricultural water management across the world, acidity, soil solution, Soil Acidity

European Soil Portal This Soil Portal contributes to a thematic data infrastructure for soils in Europe. It presents data and information regarding soils at European level. It connects to activities within JRC concerning soil (JRC SOIL Action). It serves also as a vehicle to promote the activities of the European Soil Bureau Network

Fresh water ecosystems a wide variety of animal life in or around fresh water ecosystems... aquatic birds... amphiphians .. mammals

Geomagnetism Geomagnetic data and information relating to Earth's magnetic field and Earth-Sun environment, including current declination, geomagnetic field models and magnetic indices

Island information island superlatives, principal world islands and groups, 100 largest islands of the world, largest lake islands of the world, most populous islands of the world, tallest islands of the world

Liming Acid Soils pdf file

Marine geology floor and lakebed cores, grabs, dredges, and drill samples

Ozone hole tour dramatic loss of ozone in the lower stratosphere over Antarctica was first noticed in the 1970s by a research group

Properties of water freshwater, physical property, hydrologic cycle, water supply, lake, river, ground water, Soil acidity, nutrients and toxic elements

Soil Acidity Soil Acidity and Liming of Indiana Soils, Soil pH vs. Lime index

Soil and Plant Nutrient Laboratory Soil pH, Lime Index, Phosphorus, Potassium, Calcium, Magnesium, Zinc, Manganese and Copper, Organic Matter, Cation Exchange Capacity (CEC), Percent Bases, Fertility Index, Educypedia

Soil Data Center European Soil Data Center, Europe and Africa

Soil: determining soil pH How to determining soil pH

Soil science Internet Glossary of Soil Science Terms

Soils soil biology and land management, soil landscapes, soil profiles, state of the land, hydric soils, thematic maps, soil facts, world soil maps

Soil pH Soil pH is the measurement of hydrogen activity in the soil solution and not of hydrogen concentration in the soil, soil PH instruments, Soil pH: the level of active soil acidity or alkalinity. Above 7.0 is alkaline, 7.0 is neutral and below 7.0 is acid

Soil pH Determining pH. pH is not constant in soil or water, but varies on a seasonal or even daily basis due to factors such as rainfall, biological growth, ...

Soil pH and plant nutrients Soil pH or soil reaction is an indication of the acidity or alkalinity of soil and is measured in pH units

Soil pH- What it Means The most accurate method of determining soil pH is by a pH meter

Soils: pH scale reference materials hydrogen activity, Soil pH measurement, concentration of hydrogen ions, PH meter, soil tests

Soil science education home page

Visualization of remote sensing images, movies

Horizontaal

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