An estuary is an area at the mouth of a river where the river joins a sea. Estuaries contain brackish water, which is a mixture of fresh water and salt water. They are rich in nutrients and support a large number of fish species
The biodiversity of a particular estuary has decreased due to human activities such as pollution, overfishing, and construction. A
scientist wants to develop a method to restore the biodiversity of this estuary. Which method should the scientist choose?
A. clearing all the trees surrounding the estuary
OB. planting buffer strips and restoring grasses along the estuary
Oc. introducing non-native fish by building a fish farm in the estuary
OD. building large concrete slabs surrounding the estuary