Q2. Which of the following leaf modifications occur(s) in the desert areas to inhibit water loss?
- Hard and waxy leaves
- Tiny leaves
- Thorns instead of leaves
Select the correct answer using the code given below:
(a) 2 and 3 only
(b) 2 only
(c) 3 only
(d) 1, 2 and 3
Answer: D
- Statement 1 is correct: Structural adaptations are important to plant’s survival in the desert. Wax coatings on leaves prevent water loss through evaporation, which in the hot desert can cause loss of water from both the surface and the inside of leaves.
- Statement 2 is correct: Leaves are also smaller on desert plants, further reducing the possibility for water loss.
- Statement 3 is correct: They have hard, thick coatings and some are covered in prickly spines to prevent water loss and to protect them from animals who might try to chew through them to get to their moisture.
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