according to the chart pie 1)what percentage of energy is produced by fossil fuel? 2)what percentage of energy is produced by energy technologies? 3) how much energy is produced by all alternative energy combined? U.S. energy consumption by energy source, 2017 Total 97.7 quadrillion British thermal units (Btu) Total = 11.0 quadrillion Btu geothermal 2 % solar 6% petroleum 37% wind 21% biomass waste 4% renewable energy 11% nuclear electric power biofuels 21% biomass 45% natural gas 29% wood 19% coal 9% 14% hydroelectric 25%

1) If we put a photosynthetic organism in a closed, sealed environment and shine a light on it, we observe that the CO2 and O2 levels in the container reach constant levels. a) Explain why this would occur. b) What factor/value would you expect to be the primary determinant of this value?

For questions 4 and 5 just say which kind they are (photoautotroph, chemoautotroph, photoheterotroph, or chemoheterotroph)

DATA Record all masses to the maximum number of Run 1 Run 2 sig figs 200°C 400°C 1. Mass of beaker 81.061 27.986 2. Mass of beaker + NaHCO3 85.457 32.267 3. Initial mass of NaHCO3 4.476 4.292 Mass of beaker plus products after heating. 4. 84.3 80 30.742 5. Mass of product (actual yield) There are three theoretically possible chemical reactions that could occur during the thermal decomposition of baking soda. 1) sodium bicarbonate (s) → sodium hydroxide (s) + carbon dioxide (g) 2) sodium bicarbonate (s) → sodium oxide (s) + carbon dioxide (g) + water (g) 3) sodium bicarbonate (s)→ sodium carbonate (s) + carbon dioxide (g) + water (g)

Discuss the 3 laws of thermodynamics and apply it on the ecosystem.

2. Use the information provided in the table below to calculate the volume reduction and weight reduction in percent due to recycling. Component Mixed paper Metals Plastics Organics Sum: Disposal waste composition (% by wt) 37 3 43 17 100 Recycling Efficiency (%) 10 80 30 15 N/A Density (kg/m³) 90 320 65 290 N/A

Which process conserves energy that would otherwise have been wasted and lost to the environment by recirculating warm air or water to heat a building or a water heater ? A) cogeneration B) combustion recovery C) electrostatic scrubber D) synergistic interaction

Need some help on how to graph this!