Question

2. Define estuary. What are two stresses placed on organisms that reasons why estuaries are important and should be protected. (5) live in estuaries? Give four

Answer 1

Estuary is the tidal mouth of a large river , where the river meets the ocean

Two stresses:-

• Sometimes the water is salty and sometimes it is entirely freshwater
• Level of water also keeps rising and falling more often.

Hence ,organisms needs to constantly adapt to the changing? conditions which is challenging for them

Importance of estuaries :-

• They provide economically indispensable goods and services
• Provides habitats for many aquatic plants and animals
• Helps to maintain healthy ocean environment
• It provides recreational area

Hence the estuaries needs to be protected