13. Which of the following leaf modifications occurs/occur in desert areas to inhibit water loss?
1. Hard and waxy leaves
2. Tiny leaves or no leaves
3. Thorns instead of leaves

Select the correct answer using the codes given below.

1. 1 and 2 only

2. 2 only

3. 1 and 3 only

4. 1, 2 and 3

Correct Answer :