II. Directions: Read the sentence carefully. Encircle the letter of the correct answer 1. This is the results when chemicals and nonbiodegradable materials (those materials that do not decompose) are dumped or buried in soil. a air pollution b greenhouse effect c.soil pollution d. water pollution 2. Which is the major cause of land pollution? Aexcess wastes b. garbage C. water d.water vapor 3. Water it is occurs when soil and other solids are washed into waterways from areas, cleared lands, and farms. a air pollution b. global warming c.greenhouse effect d. Water pollution 4. This is the caused by tiny organisms dinoflagellattes which multiply very quickly in saltwater when a long hot season is suddenly followed by heavy rains. a red tide b. eutrophication c. Water pollution d. Weather events​