• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Today Electrochemistry electrons moving about equilibrium with a
Today Electrochemistry electrons moving about equilibrium with a

... We want to not only physically separate the reactions! We want to separate them when we think about them.! ...
Biochar in Agricultural Systems
Biochar in Agricultural Systems

... manure that has a moisture content of around 95 percent must have the solids separated from the liquids before combustion is possible. Biochar is not the same as activated carbon, which is a compound used for purifying liquids and gases due to its high absorption capacity. Biochar would need to go t ...
Module 5.2
Module 5.2

... 2d. Fate of Forest Products • If the forest products are renewed continually, they store carbon indefinitely. • Amount stored depends on product life. The amount stored over an infinite horizon will increase with product life according to the formula: • Carbon stored in products per ha = sum  (cpi ...
a type of rock that forms when sediments are
a type of rock that forms when sediments are

... which sediment settles out of the water or wind. ...
Carbon Cycle - EarthRef.org
Carbon Cycle - EarthRef.org

... Reservoir – a place on the planet where carbon is collected and a place where carbon can move in or out. PgC – petagrams of carbon = 1 × 1015 grams Flux – the flow of carbon in or out of a reservoir Biota – the animals, plants, fungi, etc of a region Detritus – disintegrated (broken down) material f ...
precipitation rxn_level_packet
precipitation rxn_level_packet

... Precipitation Reactions Activity Directions for the following 4 reactions: a. In one well of a well-plate, add three drops of each substance. b. Write down your observations for the reactants above. c. In parenthesis provided above, indicate if the product is soluble with an “aq” or forms a precipi ...
earth science for foreign students
earth science for foreign students

... glaciers feed large glacial rivers in which subglacial volcanic eruptions and geothermal areas occasionally cause large floods (jökulhlaup). Nowhere on Earth are glaciers and large ice caps more easily accessible for study than in Iceland. So, why study Earth Science in Iceland - under the guidance ...
Phytophthora Root and Stem Rot (PRR) of Soybean
Phytophthora Root and Stem Rot (PRR) of Soybean

... the potential for damage. Studies in Iowa have shown that reduced tillage practices, especially no-till, can increase the potential for damage by maintaining a high concentration of the resting spores of the fungus in the soil layers where the root systems of the new soybean crop will grow. The dise ...
Geology Winter 09 Study Guide – Igneous Rocks • Lava flows are
Geology Winter 09 Study Guide – Igneous Rocks • Lava flows are

... Magmas that enter preexisting rocks form _____________ rocks which, if found deep below the surface are also known as plutonic rocks. Igneous rock that has exceptionally large crystals (sometimes several meters long) is most likely: 1. aphanitic 2. obsidian 3. pegmatic 4. phaneritic Igneous rocks li ...
im11
im11

... than apetite to the carboxylic acids produced by bacteria in the mouth, thereby preventing tooth decay. Also, fluoride ions inhibit the conversion of carbohydrates to the carboxylic acids that attack tooth enamel. 42. Sodium fluoride is soluble in water and ionizes to Na+ and F-. 43. Sodium is a ver ...
What are Physical Properties and Changes? - Mamanakis
What are Physical Properties and Changes? - Mamanakis

... The formation of a gas is a clue to chemical changes. The bubbles of gas that you observed form when an antacid is dropped into water is an example of change. Another clue that a chemical change has occurred is the formation of a solid. A solid that separates out of solution during a chemical change ...
Russell Brown Mound 1
Russell Brown Mound 1

... color and texture. Some areas were brick-red and hard as a result of intense burning, while others were black or brown with various concentrations of charcoal and ash. This zone was of variable thickness, ranging from about 3 cm near the periphery to 43 cm near the center of the mound. Quantities of ...
Efficiency of different bare fallow strategies to control perennial
Efficiency of different bare fallow strategies to control perennial

... The Kvick-Finn weed-cultivator is a fairly new type of machinery, specially designed to lift roots of perennial weeds up to the soil surface. The KF-cultivator effectively reduced perennial weeds in all three experiments, although the weather conditions were not optimal with frequent rain during the ...
Unit 1 Matter Day 32 2016 Counting Atoms
Unit 1 Matter Day 32 2016 Counting Atoms

... Subscripts (the little numbers) tell you how many atoms of that element are present. H2O = 2 atoms of hydrogen and one atom of oxygen  If a coefficient (big number) is written in front of a chemical formula or symbol, you have to multiply that number by all the elements in the compound. Ex. 2NaCl ( ...
Chapter 8 Chemical Equations and Reactions
Chapter 8 Chemical Equations and Reactions

... H2S(g) + FeCl2(aq) ...
Net Ionic Equations
Net Ionic Equations

... Determining Oxidation Number of Elements & Molecules 1. In uncombined or free elements (not ionized), each atom has an oxidation number of 0. E.g., all of the atoms in these molecules: H2, Na, S8, O2, P4. 2. In simple ions (i.e., charged species which contain only one atom), the oxidation number is ...
Balancing reaction equations, oxidation state, and reduction
Balancing reaction equations, oxidation state, and reduction

... Determining Oxidation Number of Elements & Molecules 1. In uncombined or free elements (not ionized), each atom has an oxidation number of 0. E.g., all of the atoms in these molecules: H2, Na, S8, O2, P4. 2. In simple ions (i.e., charged species which contain only one atom), the oxidation number is ...
Defining Colluvium and Alluvium: An Experiment to Discuss and
Defining Colluvium and Alluvium: An Experiment to Discuss and

... and alluvium are widely used, but their meanings vary almost as widely. Definitions for these terms can include connections to different geomorphic processes, landscape positions, or hydrology. In soil science, colluvium can be particularly influential as it is recognized in some national classifica ...
Chemical Reactions
Chemical Reactions

... Note the number of moles of gas on the left-hand side and the number of moles of gas on the righthand side. When the volume of the system is changed, the partial pressures of the gases change. If we were to decrease pressure by increasing volume, the equilibrium of the above reaction will shift to t ...
green ch9 lesson4
green ch9 lesson4

... This shale is a sedimentary rock made of mud and lay. As new sediments settled to the bottom of a lake or ocean, they pressed on mud and clay below. The veight of the new sediments pressed on the mud, slowly causing the mud to harden into shale. Notice the sediments in the sandstone. This rock is m ...
10th CBSE {SA - 1} Revision Pack Booklet - 3
10th CBSE {SA - 1} Revision Pack Booklet - 3

... Thus, hydrated copper sulphate crystals are blue in colour and have formula CuSO4 .5H2 O www.pioneermathematics.com S.C.O. - 326, Sector 40–D, CHD. Phone: 9815527721, 4617721 ...
Task 3.2
Task 3.2

... specific uncertainties highlighted by the recent review by Aarhus University carried out to update the GB. Factors of particular importance to be considered are as follows. Emissions from different types of N fertilizers Meta-analysis of large amounts of data is a powerful tool with which to carry o ...
4.6 Oxidation-Reduction (Redox) Reactions Oxidation Reduction
4.6 Oxidation-Reduction (Redox) Reactions Oxidation Reduction

... Identifying Redox Reactions First determine oxidation numbers of each species in the reaction and then identify the oxidation and reduction processes A. Oxidation and reduction occur together. Whenever an atom loses electrons (is oxidized) another atom must gain those electrons (be reduced). B. Redu ...
Chapter 16
Chapter 16

... Frost wedging: water collects in the pores and cracks of rocks and expands when frozen, then splits the rock. Causes street potholes to expand. ...
Recommended Site Practices Apply manure in such a way that it
Recommended Site Practices Apply manure in such a way that it

... • Animal manure should not be applied to saturated soils, during rainfall events, or when the soil surface is frozen (if at all possible). When animal manure is to be applied on acres subject to flooding, it should be soil incorporated on conventionally tilled cropland. When applied to conservation- ...
< 1 ... 34 35 36 37 38 39 40 41 42 ... 213 >

Pedosphere

The pedosphere (from Greek πέδον pedon ""soil"" or ""earth"" and σφαίρα sfaíra ""sphere"") is the outermost layer of the Earth that is composed of soil and subject to soil formation processes. It exists at the interface of the lithosphere, atmosphere, hydrosphere and biosphere. The sum total of all the organisms, soils, water and air is termed as the ""pedosphere"". The pedosphere is the skin of the Earth and only develops when there is a dynamic interaction between the atmosphere (air in and above the soil), biosphere (living organisms), lithosphere (unconsolidated regolith and consolidated bedrock) and the hydrosphere (water in, on and below the soil). The pedosphere is the foundation of terrestrial life on this planet. There is a realization that the pedosphere needs to be distinctly recognized as a dynamic interface of all terrestrial ecosystems and be integrated into the Earth System Science knowledge base.The pedosphere acts as the mediator of chemical and biogeochemical flux into and out of these respective systems and is made up of gaseous, mineralic, fluid and biologic components. The pedosphere lies within the Critical Zone, a broader interface that includes vegetation, pedosphere, groundwater aquifer systems, regolith and finally ends at some depth in the bedrock where the biosphere and hydrosphere cease to make significant changes to the chemistry at depth. As part of the larger global system, any particular environment in which soil forms is influenced solely by its geographic position on the globe as climatic, geologic, biologic and anthropogenic changes occur with changes in longitude and latitude.The pedosphere lies below the vegetative cover of the biosphere and above the hydrosphere and lithosphere. The soil forming process (pedogenesis) can begin without the aid of biology but is significantly quickened in the presence of biologic reactions. Soil formation begins with the chemical and/or physical breakdown of minerals to form the initial material that overlies the bedrock substrate. Biology quickens this by secreting acidic compounds (dominantly fulvic acids) that help break rock apart. Particular biologic pioneers are lichen, mosses and seed bearing plants but many other inorganic reactions take place that diversify the chemical makeup of the early soil layer. Once weathering and decomposition products accumulate, a coherent soil body allows the migration of fluids both vertically and laterally through the soil profile causing ion exchange between solid, fluid and gaseous phases. As time progresses, the bulk geochemistry of the soil layer will deviate away from the initial composition of the bedrock and will evolve to a chemistry that reflects the type of reactions that take place in the soil.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report