Mark check (✓) if the statement is correct and (X) if it is wrong.

___1. Using synthetic fertilizers can harm estuaries.

___2. Factories are threats to intertidal zones.

___3. Palnting mangrove in the shorelines can protect the estuaries and intertidal zones.

___4. Using motorized vehicles near coral reefs is good for corals.

___5. Coastal clean up in one way of conserving our marine life.

PATULONG PO