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    1. /əˈkjuːmjəleɪt/ (v.) To gradually increase over time Tamarisk has a high tolerance for salty conditions and even produces its own salt, which it _______ s in special glands.

    2. /ɪˈvæpəreɪt/ (n.) The change from liquid to gas, Loss of water to the air P. euphratica controls _______ by opening and closing the stomata, or tiny pores.

    3. /daɪˈvɜːs $ dəˈvɜːrs, daɪ-/ Varied, of many kinds The _______ ways that plants adapt to desert conditions makes a fascinating study.

    4. /swɪŋ/ (n.) A sudden or big change Sparse rainfall, daily temperature _______ s of up to 20°C, and violent sandstorms make it one of the most extreme environments on Earth

    5. /stresə $ -ər/ Something that causes great difficulties The main _______ in a desert is lack of rain.