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social studies unit1
| Question | Answer |
|---|---|
| export | to ship (commodities) to other countries or places for sale, exchange, etc. |
| Peninsula | an area of land almost completely surrounded by water except for an isthmus connecting it with the mainland. |
| Sustainable | capable of being supported or upheld, as by having its weight borne from below. |
| Biodiversity | biological diversity among and within plant and animal species in an environment. |
| Ecosystem | a system, or a group of interconnected elements, formed by the interaction of a community of organisms with their environment. |
| Rainforest | a tropical forest, usually of tall, densely growing, broad-leaved evergreen trees in an area of high annual rainfall. |
| Grassland | an area, as a prairie, in which the natural vegetation consists largely of perennial grasses, characteristic of subhumid and semiarid climates. |
| Tundra | one of the vast, nearly level, treeless plains of the Arctic regions of Europe, Asia, and North America. |
| the coniferous evergreen forests of subarctic lands, covering vast areas of northern North America and Eurasia. | |
| Desert | a region so arid because of little rainfall that it supports only sparse and widely spaced vegetation or no vegetation at all. |