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1) CO2 + 4 H2 → CH4 + 2H2O and 2) CH3COO− + H+ → CH4 + CO2. These reactions occur without oxygen in swamps, wetlands, and mangroves, in the mud along the banks of rivers and lakes, and in the digestive tracts of mammals and termites. ∑ - Methane is oxidized to carbon dioxide and water in the atmosphere.
4.3.U10 Animals such as reef-building corals and Mollusca have hard parts that are composed of calcium carbonate and can become fossilized in limestone. State that hard shells, such as in mollusk and coral, are made of calcium carbonate. 4.3.A1 Estimation of carbon fluxes due to processes in the carbon cycle.
The toxic waste dump problem is the name given to the general idea of finding the point on a Voronoi diagram which is furthest from any of the sites. A site is the coordinates of a specific place of interest on a Voronoi diagram.
Organic carbon is found in the biomass of living organisms e.g. in carbohydrates and proteins. Inorganic carbon is found in the atmosphere as carbon dioxide and in the oceans as e.g. hydrogen carbonate ions. The carbon cycle can be represented using a diagram. Carbon cycle diagrams show:
8.2.7 Explain the relationship between the action spectrum and the absorption spectrum of photosynthetic pigments in green plants. The action spectrum of photosynthesis is a graph showing the rate of photosynthesis for each wavelength of light. The rate of photosynthesis will not be the same for every wavelength of light.
2 de nov. de 2016 · Processes involving the transfer and transformation of carbon, nitrogen, and water as they cycle within an ecosystem should be described, and the conversion of organic and inorganic storage noted where appropriate. Construct and analyse flow diagrams of these cycles
Communities and ecosystems 5.1.1 Define species, habitat, population, community, ecosystem and ecology. Species: a group of organisms that can interbreed and produce fertile offspring.. Habitat: the environment in which a species normally lives or the location of a living organism.. Population: a group of organisms of the same species who live in the same area at the same time.
