1) Tundra is the ___________ ecosystem on earth. a) the hottest b) the coldest c) the coolest d) the warmest 2) Tundra is also very _______________. a) humid b) wet c) dry 3) Tundra is located in land areas near ___________________. a) the North Pole b) the South Pole c) the Equator 4) It´s main characteristic is the absence of _________________. a) insects b) birds c) trees d) bacteria 5) Fauna typical of the tundra are reindeers, caribou, artic foxes, ____________ and white wolves. a) brown bears b) polar bears c) penguins 6) Grasslands are flat areas dominated by _________________. a) grasses b) trees c) bushes d) fungi e) mosses 7) Tropical rainforests are warm and _______________ all year long. a) humid b) dry c) wet 8) Over half of the plant and animal species live in _______________________. a) the Tundra b) the Grasslands c) the Rainforests d) the Forest e) the Desert 9) Typical fauna in the rainforest are ______________, jaguars, insects and many kinds of birds such as parrots and toucans. a) wild boar (pigs) b) monkeys c) foxes d) polar bears 10) There are three types of forests: Coniferous, ______________ and Mediterranean. a) rainforest b) tundra c) deciduous d) grassland e) desert 11) Temperate deciduous forests are dominated by trees which lose their ________________ every winter. a) leaves b) bark c) roots d) flowers e) fruit 12) Deserts are _____________ and hottest places on earth. a) the biggest b) the highest c) the driest d) the wettest e) the coolest 13) In the desert _________________ are very high during the day and low at night. a) the precipitation b) the winds c) the altitude d) the temperatures

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