Q. Consider the following pairs regarding types of plants and their preferred environments:

1. Halophytes – Plants of saline water
2. Oxylophytes – Plants of acidic soil
3. Psammophytes – Plants growing on the sand

Which of the above pairs is/are correctly matched?
Answer: 1, 2 and 3
Notes: Halophytes are adapted to saline water; Oxylophytes grow in acidic soils (also called acidophytes); Psammophytes thrive on sandy substrates. All three pairs are correctly matched, as each term specifically denotes a plant type suited to that particular environment or soil condition, based on its adaptation strategies.