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1. Briefly describe what biofuels are and the benefit of algae as a source of biodiesel.
2. What is your opinion/stance on biofuels as an alternative energy source?
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- 7. Complete the following table. Source of Carbon Usual Source of Energy Example Photoautotroph Photoheterotroph Chemoautotroph Chemoheterotroph Saprobe Parasite1. Construct a table comparing natural gas, coal, and oil according to (a) origin, (b) fuel value, (c) other uses, (d) chemical composition, (e) environmental effects, etc. 2. Make a report on biofuels currently being studied and used in the Philippines. 3.Make a presentation on the advantages and disadvantages of using biofuels as an alternative energy source in the Philippines.4. Define heterotrophs. How do they obtain energy? 5. Define autotrophs. How do they obtain energy?
- 2. What are the processes in order for a biomass become a useful.source of energy. Outline/ illustrate and elaborate your answer.2. Illustrate the preparation of porous carbon materials using sugarcane biomass. End of document10. Explain how a raceway would be used to grow microalgae. What are the commercial bottlenecks. What are the typical growth rates and what are the requirements for microalgal growth and implications for CO2 sequestration using microalgae (1.8 kg of CO2 per produces 1 kg of microalgae)? 11. What is the relationship between growth rate and potential energy yield, how would you increase the energy yield. Emissions from coal are approximately 1 tonne of CO₂/MWh (e.g. tCO₂MWh-¹) Emissions from natural gas are about 0.5 tCO₂MWh-¹.
- 69. what types of energy is transferred from one object to another? potential energy chemical energy radioactive energy heat kinetic energy 70.what type of organisms return chemicals to the soil saprophytes producers autotrophs consumers heterotrophs1.What is biomass as a source of energy? Is it considered as renewable source of energy? Justify your answer.A. Plant Nutrition A gumamela is a an example of an autotrophs. 1. Which of the following is another example of an autotrophs? a. mushroom b. cactus c. grasshopper 2-3 Explain your choice. 4-5. Give 2 more examples of autotrophs.
- 1. Which of the following sentences is/are true for Biofuels?I. The second generation of the bioethanol is starch-based.II. Bioethanol and biogas are examples of the biofuels.III. Bioethanol can be produced from cellulosic feedstocks, like crop residues.A. I onlyB. III onlyC. I and IID. II and IIIE. I, II and IIIAnswer the following 1. Why is it a advantage for plants to have different colored pigments? 2. Chlorophyll-enriched products and supplements are now being sold in the market. Find out what benefits these products claim. With your knowledge about chlorophyll, do you think these claims are valid? Support your answer.Identify which of the following are autotrophs, and which are heterotrophs. ________1.Grass ________2. Dais________3. Plankton ________4. Bee ________ 5.Seaweed ________ 6. Horse ________ 7. Human Being ________ 8. lichen ________ 9. Narra ________ 10. Rhodoferax ________ 11. Cat ________ 12. Caterpillar ________ 13. Ringworm ________ 14. Malunggay ________ 15. Kelp