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 only B. III only C. I and II D. II and III E. I, II and III
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 only B. III only C. I and II D. II and III E. I, II and III 2. Which of the following options is/are goods of ecosystem? A. Fresh air B. Fresh water C Timber for furniture D. All of the above E. None of the options are correct 3. Which of the following is the correct sequence of oil recovery? I. CO2 gas is injected into the wells II. Oil is pumped out from the wells by conventional pump III. Steam is injected into the wells IV. Oil is broken up and moves towards the wells A. I, IV, III, II B. II, III, I, IV C. III, IV, II, I D. III, I, IV, II E. IV, II, I, III 4. Which of the following species is an autograph? A.Mite B.Shrimp C.Fungi D.Algae E.Earthworm 5. Which of the following substances is NOT classified as “detritus”? A. Dead leaves B. Fecal wastes C. A sheep eating grasses D. Dead body of an earthworm E. Animals’ excretion wastes 6. Which of the following is a cause of the loss of Biodiversity? A. Massive exploitation of species for their commercial value B. Too much solid waste on the terrestrial land C. Forest and grasslands are protected by the legislation D. Pollution enhances the natural habitats E. Decreasing appetite for food 7. Which of the following statement is INCORRECT? A. Bacteria can decompose organic nitrogen. B. Biological nitrogen fixation is carried out by bacteria. C. Ammonia, ammonium ion and nitrate ion are examples of biological available nitrogen. D. Denitrifying bacteria converts atmospheric dinitrogen gas into nitrate ion. E. Nitrification is the process of converting reactive nitrogen into another form of reactive nitrogen. 8. Which of the following statement about coal gasification is INCORRECT? A. The synthesis gas is CH4. B. It produces liquid coal under high pressure and temperature. C. It relieves the stress from oil and gas supply. D. It is a type of non-renewable energy. E. The first step is called steam reforming. 9. Which of the following species is NOT a compound? A. Glucose, C6H12O6 B. Water, H2O C. Methane gas, CH4 D. Carbon dioxide gas, CO2 E. Nitrogen gas, N2 10. Which of the following statements is INCORRECT? I. Burning fossil fuels is a form of utilizing biomass energy. II. Ocean thermal-energy conversion (OTEC) makes use of the thermal gradient between the warm upper surface water and the cool deep water to generate electricity. III. The working solution to drive the turbogenerator in OTEC is water. A. I only B. II only C. I and III D. II and III E. I, II and III
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