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San Francisco is built on 40 hills and some are very ________.  

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In the northern part of the Simpson Desert, the dunes are separated by ________ of low, open shrubland.  

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After Peter had returned from the Sahara desert, he was confined to bed by a ________ disease.  

Choose the word that is closest in meaning to the underlined word. 

We used to climb up the crest of the hill to get a good view of the surroundings. 

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If the deserts are ________ managed, there may be troubles for scientific expeditions.

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Thanks to pictures taken by satellites, deserts have not ________ a mystery in our time. 

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The hill was so ________ that it took us more than five hours to climb up.  

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The Sahara contains complex linear dunes that are ________ by almost 6kilometers. 

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Danh từ “cause” nghĩa là gì?

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More and more ________ are very excited at discovering as many interesting things in the deserts as possible.

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Deserts are also classified by their ________ location and dominant weather pattern. 

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Deserts are often composed of ________ and rocky surfaces

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A _______ is a landscape or region that receives very little precipitation.

Choose the word that is closest in meaning to the underlined word. 

Three great stretches of sandy deserts almost circle the center of Australia. 

Choose the word which is closest in meaning to the underlined word. 

In the northern part of the Simpson Desert, the dunes are parallel.  

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I wanted to go a more ________ route across Montana.