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Question: What are the biotic and abiotic parts of an ecosystem? Which of the following is not true of using landfills for disposal of solid waste? Landfills have limited storage space. It is hard to find suitable land to build landfills. Landfills cannot store hazardous waste. Once full, landfills can be dug up and used again. How do forests benefit the environment? What are Earth’s two main greenhouse gases? How do greenhouse gases affect weather? What are fossil fuels, and how are they used? What is the purpose of the Air Quality Index (AQI)? Which of the following chemicals can be found in batteries, fluorescent lights, and glass thermometers? A. mercury B. arsenic C. lead D. carcinogens Where can the chemical bisphenol A (BPA) commonly be found? Which law provides rules and regulations about managing hazardous waste? A. Clean Air Act B. Safe Drinking Water Act C. Resource Conservation Recovery Act D. Energy Independence and Security Act What is the highest step in the environmental protection hierarchy? List three sources of renewable energy. Which of the following products is safe for disposal in a trash can? A. car batteries B. cellophane wrappers C. antifreeze D. full aerosol cans Standardized Test Prep Math Practice The following results are from a study of US waste materials. Review the results and answer the following questions. Percent of total waste (in tons) generated by material in 2017 ; Paper and paperboard: 25 percent; Glass: 4 percent ; Metals: 9 percent; Plastics: 13 percent; Yard trimmings: 13 percent; Food: 15 percent; Wood: 7 percent; Rubber and leather: 4 percent; Textiles: 6 percent; Other: 4 percent US Environmental Protection Agency Which type of material accounted for the most waste in tons? The total amount of food waste in 2017 was 40,670,000 tons. Calculate the total amount of waste in tons. Which type of material accounted for 13 percent of the total waste in tons? A. textiles B. yard trimmings C. plastics D. Both B and C I know it's 16 questions but if you could make your answers short it would be greatly appreciated.
Sure, here are the answers to your questions: 1. **Biotic and Abiotic Parts of an Ecosystem**: - **Biotic**: Living components like plants, animals, bacteria. - **Abiotic**: Non-living components like water, air, soil, sunlight. 2. **Not True About Landfills**: - Once full, landfills can be dug up and used again. (This is not true.) 3. **How Forests Benefit the Environment**: - Produce oxygen, store carbon, provide habitat, regulate water cycles, prevent soil erosion. 4. **Earth’s Two Main Greenhouse Gases**: - Carbon dioxide (CO₂) and methane (CH₄). 5. **How Greenhouse Gases Affect Weather**: - They trap heat in the atmosphere, leading to global warming and climate change. 6. **What Are Fossil Fuels and Their Use**: - Fossil fuels (coal, oil, natural gas) are used for energy production, transportation, heating, and electricity. 7. **Purpose of the Air Quality Index (AQI)**: - To measure and report air quality, indicating how clean or polluted the air is. 8. **Chemical Found in Batteries, Fluorescent Lights, and Glass Thermometers**: - A. mercury 9. **Where Bisphenol A (BPA) Can Be Found**: - Commonly found in plastic containers, bottles, and the lining of food cans. 10. **Law for Managing Hazardous Waste**: - C. Resource Conservation Recovery Act 11. **Highest Step in Environmental Protection Hierarchy**: - Prevention (or reducing waste generation at the source). 12. **Three Sources of Renewable Energy**: - Solar, wind, and hydropower (water energy). 13. **Product Safe for Disposal in Trash Can**: - B. cellophane wrappers 14. **Material That Accounted for the Most Waste in 2017**: - Paper and paperboard (25 percent). 15. **Total Amount of Waste in 2017**: - 271,133,333 tons (calculated as 40,670,000 tons for food waste, which is 15%, therefore 40,670,000 ÷ 0.15). 16. **Material That Accounted for 13% of Total Waste**: - D. Both B and C (yard trimmings and plastics).
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