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S & E TERM REPORT (REVISON)

Natural environment: Environment division not created by people but by nature.

Biodiversity: It is wide range of species in the environment, is essential for the survival of ecosystems.

Eco systems: An ecological community together with its environment, functioning as a unit.

Salinity: The rising salt levels in groundwater, soils and streams. As salinity, levels increase, water is extracted from plants less easily form the soil, irritating water conditions. The Large amounts of soil salinity can cause nutrient imbalances this result in additional of elements

Habitat destruction: The destruction of area or environment where an organism or ecological community normally lives or occurs: a marine habitat.

Climate: the typical weather conditions of an particular place (temperature, precipitation, air pressure, wind and humidity) experienced over a period of more than 30 years.

Tundra biome: Treeless plain near very cold regions near the artic circle, across artic

Coasts and islands of North America and Eurasia. The avg. Temperature of the month