12. Which of the following is a threat to coral reefs?
a. oil spills
b. pesticides c. sewage
d. All of the above
13-15 Which of the following are the importance of Mangroves? Check the statements if it
shows importance of mangroves and cross out if it does not show importance of mangroves.
13. Mangroves are habitat of different organism.
14. Mangrove provide a source of livelihood.
15. Mangroves serve as breeding or nesting grounds of different species.
II. There are different animals below. Identify if the animal is a mammal, fish, reptile, amphibian
or bird. Write the answers before each number.
1.Crocodile
2. Rooster
3. Snake
4.Elephant
5.Fish
6.Bangus
7.Mouse
8.Alligator
9.Maya
10.Toad​