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DSST Environment-Humanities DANTES II

Know biomass biomass production in the different

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Know Biomass (Biomass production in the different biomes and aquatic habitats.) Biomass, in ecology, is the mass of living biological organisms in a given area or ecosystem at a given time. Biomass can refer to species biomass, which is the mass of one or more species, or to community biomass, which is the mass of all species in the community. Specifics on grassland biomes There are two main divisions of grasslands: (1) tropical grasslands, called savannas, and (2) temperate grasslands. Where is the most diversified ecosystem?
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Ocean – Coral Reef, Land – Tropical Rain Forest What ecosystem is a deep sea similar too? Profundal (deep water) are very similar to ocean zones (shallow water parts). Which countries have the least and most energy used per person respectively? India, Russia What is the main source of fossil fuel consumption in the US? The greatest user of petroleum and this is because of the transportation industry Fossil fuels and their beginnings, future, and alternatives to them. Fossil fuels are fuels formed by natural resources such as anaerobic decomposition of buried dead organisms. The age of the organisms and their resulting fossil fuels is typically millions of years, and sometimes exceeds 650 million years. The fossil fuels include coal, petroleum, and natural gas. Alternates – Solar, wind, geothermal, biofuel, nuclear etc. Water purification processes Is a process of removing undesirable chemicals, materials, and biological contaminants from raw water. The goal is to produce water fit for a specific purpose. Most water is purified for human consumption (Drinking water) but water purification may also be designed for a variety of other purposes, including meeting the requirements of medical, pharmacology, chemical and industrial applications. In general the methods used include physical process such as filtration and sedimentation, biological processes such as slow sand filters or activated sludge, chemical process such as flocculation and chlorination and the use of electromagnetic radiation such as ultraviolet light. Fresh water can be cleansed of non-persistent pollutants with the help of (bacterial growth and metabolism, photosynthesis, and acid deposition. Know the sun’s impact positive and negative. The sun’s gravity holds the planets in place, sun keeps the earth in motion, our planet would freeze, there would be no daylight etc. Negative – solar flares effect weather and satellites, sunspots throw large masses of coronal material at earth etc. Know the tundra, rangelands, tropical rainforests and their dynamics.
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Tundra - is a biome where the tree growth is hindered by low temperatures and short growing seasons. (artic – Boreal Forest) Rangeland - Rangelands include natural grasslands, savannas, shrublands, many deserts, tundra, alpine communities, coastal marshes, and wet meadows. Rangeland is generally arid, semi-arid, sub-humid or otherwise unsuitable for cultivation. Ranches are likely to comprise mainly rangeland.
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