Consider the following statements-
1. Most important of the hot deserts are the Sahara and its extensions.
2. The Arabian desert, Thar, Kalahari, the West Australian deserts, Atacama and Californian deserts are the other hot deserts.
3. The plants of these deserts are able to withstand the dryness.
4. They are so structured as to adapt to these conditions.
5. Narrow leaves, chlorophyll rich stems, deep and penetrating roots, protective spikes and small thorns are the characteristic features.
6. The plants are spaced out because of the scarce groundwater sources.
7. In the deserts, like the plants, the animals are also limited in number.
Select the correct answer using the codes given below.
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