PRESENTATION OUTLINE
Biosphere - the zone of life on Earth, a closed system (apart from solar and cosmic radiation and heat from the interior of the Earth), and largely self-regulating.
Biotic Factor - any living component that affects another organism, including animals that consume the organism in question, and the living food that the organism consumes.
Abiotic Factor - non-living conditions which can influence where plants or animals live.
Temperate Climate - those without extremes of temperature and precipitation. The changes between summer and winter are generally invigorating without being frustratingly extreme.
Tropical Climate - a non-arid climate in which all twelve months have mean temperatures of at least 18 °C (64 °F).
Polar Climate - regions are characterized by a lack of warm summers. Every month in a polar climate has an average temperature of less than 10 °C (50 °F).
Biome - A large community of plants and animals that occupies a distinct region.
Biodiversity - a contraction of "biological diversity," generally refers to the variety and variability of life on Earth.
Habitat - the natural home or environment of an animal, plant, or other organism.
Invasive Species - are plants, animals, or pathogens that are non-native (or alien) to the ecosystem under consideration and whose introduction causes or is likely to cause harm.
Pollution - the presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects.
Overharvesting - refers to harvesting a renewable resource to the point of diminishing returns.
Solar Energy - radiant light and heat from the Sun harnessed using a range of ever-evolving technologies such as solar heating.
Wind Energy - the use of air flow through wind turbines to mechanically power generators for electricity.
Biofuels - a fuel derived directly from living matter.
Nuclear Fusion - a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.
Nuclear Fission - a nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy.
Geothermal Energy - energy made by heat inside the Earth's crust. It's clean and sustainable.
Hydroelectric Power - The turbine turns the generator rotor which then converts this mechanical energy into another energy form -- electricity.
Fuel Cell - device that converts the chemical energy from fuel into electricity through a chemical reaction of positively charged hydrogen ions with oxygen.
Aquaculture - is the farming of aquatic organisms such as fish, crustaceans, mollusks and aquatic plants.
Agriculture - the science or practice of farming, including cultivation of the soil for the growing of crops and the rearing of animals to provide food, wool, and other products.
Sustainability - the capacity to endure; it is how biological systems remain diverse and productive indefinitely.
Carrying Capacity - a biological species in an environment is the maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water, and other necessities available in the environment.
Limiting Factors - things that prevent a population from growing any larger.
Exponential Growth - occurs when the growth rate of the value of a mathematical function is proportional to the function's current value.
Natural Resources - materials provided by the Earth that humans can use to make more complex (human-made) products.
Ecological Footprint - a measure of human impact on Earth's ecosystems.
Recycle - convert (waste) into reusable material.
Eutrophication - the enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus, or both.