DIRECTION: Choose the letter of the correct answer. Write your answer using
your Science journal or notebook.
1) Which of the following human activities help in conserving estuaries and
intertidal zones?
A. Throwing toxic detergents on them.
B. Having commercial values to fishing industries.
C. Adding soil, water or liquid pollution in estuaries.
D. Propagating mangroves
2) Which of the following must we pay attention to prevent excessive
harvesting?
A. quantity
B. color
C. life
D. quality
3) Which of the following protects plants along waterway bank on estuaries?
A. Fencing
B. Housing C. Dredging D. Quarrying
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