Activity 2 Directions: Draw the diagram below on your answer sheet. Complete the concept web by choosing 5 practices that contribute to the destruction of estuaries and intertidal zones from the box that follow. O DESTRUCTIONS OF ESTUARIES AND INTERTIDAL ZONES C . Plant trees or seagrasses. Conserve water in your daily life. Practice dynamite fishing. Dump waste materials on bodies of water. Encourage children in catching young aquatic animals. Spill crude oil and other substances in the bodies of water. Follow proper disposal directions on some of your household materials. Increase the number of bacteria or viruses in aquatic ecosystem. ​