SCIENCE V 1ST QUARTER (SUMMATIVE) 1. III. Direction: Read the following questions carefully. Write the letter of the correct answer on the space provided. Farmers use chemical fertilizer to increase their harvest. What are the harmful effects of this when not properly used A. It pollutes water, air and soil. It gives abundant harvest. C. I destroys the plants D. It gives more income to the farmer. 2. What are you going to do on chemical substances that are left over from products such as soap, detergent and chlorine? В. A. Water it into the plants B. Throw into the river C. Leave it anywhere at home D. Dispose it properly where it is not reachable by children. 3. Oil spill from ships and barge pollutes the ocean. Which among the ff. are most affected by its harmful effect? A. Aquatic plants and animals B. Birds flying around the sea C. People travelling and crossing the ocean. D. Community 4. Muriatic acid, zonrox and chlorine are substances used in cleaning. When are these materials become harmful? A. Use it without proper guidance B. Helps disinfect at home C. Keep it properly to a secure place. D. Use it with precautionary measure. 5. How can an LPG be useful? A. It can be use in burning houses B. It can be used in cooking C. It can be dangerous D. There is no harm in using LPG following materials in column
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