Relier Pairs Global Studies 7 - Period 8Version en ligne Global Studies 7 - Period 8 par Emily Myers 1 Tropical or subtropical grassland or savanna 2 natural resources 3 temperate grassland and brush 4 Ecosystem 5 temperate forest 6 Tundra 7 Desert and Desert Brush 8 Tropical or subtropical forest 9 Subarctic Forest 10 Mediterranean Brush 11 Mountain grassland and brush 12 ice cap Vast grasslands cover regions that get more rain than deserts but too little to support forests Steady hot temperatures and moist air support the rich ecosystems known as tropical rain forests Shrubs and other low plants in Mediterranean climates have to hold water from winter rains to survive hot, dry summers A park-like landscape of grasslands with scattered trees that can survive dry spells. Vegetation depends on elevation, since temperatures drop as altitude increases. dry semiarid areas and deserts with some rain support animals and low-lying desert plants. a vast, flat, treeless Arctic region of Europe, Asia, and North America in which the subsoil is permanently frozen. Materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain coniferous trees are trees that produce cones to carry seeds. They also have needles. These features protect trees through the cold, dry winters of subarctic climates. group of plants and animals that depend on each other and their environment for survival Moist temperate climates support thick forests of deciduous trees a covering of ice over a large area, especially on the polar region of a planet.