1) Where are hot deserts found? a) 5 -10 degrees N/S of the Equator b) 0 - 5 degrees N/S of the equator c) 20-30 degrees N/S of the equator d) 10-20 degrees N/S of the equator 2) What is the average annual rainfall in a hot desert? a) 100 mm b) 250 mm c) 50 mm d) 400 mm 3) What is the diurnal temperature range? (difference between max and min in a day) a) 10 degrees b) 5 degrees c) 60 degrees d) 35 degrees 4) What are the typical characteristics of hot desert soils? a) sandy, 10 m deep, high organic content b) sandy, rocky, around 1 metre deep, little organic content c) clay, around 2 m deep, low organic content d) loam, around 4 meters deep, high organic content 5) What are the main environmental challenges in a hot desert? a) dry conditions, high temperatures, short periods of rainfall b) dry conditions, seasonal rainfall c) intense rainfall an high temperatures d) high temperatures, prolonged rainfall 6) What is a xerophyte? a) An animal that can survive in very dry conditions b) A plant that grows on another plant c) A plant that can survive in very dry conditions d) An animal that burrows underground. 7) What is a succulent? a) animals that need a lot of water b) plants that store water in their tissues c) plants that use up lots of water d) a juicy plant that camels like 8) What are the key adaptions of an acacia tree? a) wide trunks and deep roots b) wide leaves and woody bark c) short trunks, fire -resistant, deep roots d) shallow roots and wide branches 9) Which of these is an example of mineral mining in the Western Deserts of the USA? a) Lush crops of vegetables, peppers, grapes in the Coachella Valley, California. b) uranium mining near the Grand Canyon c) The Sonoran Solar Project in Arizona d) The Glen Canyon Dam 10) Which of these are opportunities for human activity in the Western Deserts of the USA a) farming , mining and tourism b) energy production, fishing, car industry c) building factories and power stations 11) Which of these are challenges of living in the Western Deserts of the USA? a) flooding and storms b) sand storms and flooding c) Extreme temps, water supply, inaccessibility d) strong winds and limited water supply 12) Which of these is one of the three areas of desert in the USA? a) Mojave b) Gobi c) Sahara d) Atacama 13) How have people adapted to the lack of water in the desert? a) cutting grass more regularly b) using drought-resistant garden plants, flat roofs and building dams c) painting houses black d) filling up swimming pools and having barbeques

Revising Hot Desert Ecosystems

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