GLOSSARY UNIT 2, SOCIALS SCIENCE

Temperature: the degree of hotness of something like a place or a person.
Oases: places with water in a desert zone where nomadic herdsmen live.
Precipitation: rain fromed by condensation of water vapour in the atmosphere. Quantity of water that a plce reveives.
Settlement: the stablishment of a new region.
Livestock: animals kept for domestic use but not as pets.
Scrub: an area of arid land covered with such vegetation.
Holm oak tree: an evergreen Mediterranean oak tree.
Log: a section of the trunk or a main branch of a tree.
Deforestation: the action of cutting down trees.
Savannah: open grasslands, usually with bushes or trees, characteristic of tropical Africa.
Taiga: coniferous forest.
Tundra: high alitude zone covered by ice and composed by small plants. Its fauna is made up of birds and insects.   
Jungle: an equatorial forest area with luxuriant vegetation, often almost impenetrable.
Desert: a region with no vegetation due to low rainfall.
Steppe: an extensive grassy plain usually without trees.
Deciduous forest: forest found in Oceanid or Atlantic climate zone with oaks, beech trees and chestnut trees.
Evergreen forest: found in Mediterranen climate zones. Formed by pines, scrub and grassland.
Riparian forest: special forest found in Savannahs with trees.
Meadow: an area of grassland, often used for hay or for grazing of animals.
Grassland: land on which grass predominates.
Climate change: progressive improvement of Earth's temperature.
Atmosphere: the gaseous envelope surrounding the earth.
Drought: a prolonged period of rainfall.
Acid rain: RAin with very small pieces of pollution that destroys natural environment.
Hurriane: destructive storm.     
Tornado: a violent storm with winds whirling that causes damage along its path.
Tsunami: a very big wave that causes a lot of damage when it arrives at the continental coast.
Sandstorm: a strong wind that whips up clouds of sand.
Flood: the inundation of land that is usualy dry.