Answer 1

(a) marshes
(b) oases
(c) mud flats
( d) paddy fields
(e) 1. rivers 2. lakes 3. lagoons 4. mangroves 5. coral reefs.
(f) 1. fish and shrimp farms 2. ponds 3. irrigated land like paddy fields 4. salt pans 5. reservoirs.
(g) 1. checking floods 2. preventing soil erosion 3. reclaiming land 4. breeding marine organisms like
shrimps etc 5. preventing siltation of water ways 6. erosion of forests 7. providing the source of water.