ENV20
1. Which of the following renewable energy would require the use of hazardous materials like inert silicon, arsenic and cadmium- solar
2. What is the 5 day BOD of sugar beet factory wastewater? 10000
3. These are organism that returns organic material to inorganic material; completes recycling of atoms. - Decomposer
4. A kind of interaction in which two organisms strives to obtain the same limited resources, and in the process both organisms are harmed to some extent. -Competition
5. Which of the following renewable energy may cause radical changes in river ecosystems? – tidal
6. A wastewater sample has a k1 = 0.2 day-1 and an ultimate BOD = 400 mg/L. What is the 5 day BOD?- 253
7. These are terrestrial climax communities with wide geographic distribution.- biomes
8. A wastewater sample has a k1 = 0.2 day-1 and an ultimate BOD = 300 mg/L. What is the final dissolved oxygen in a BOD bottle in which the sample is diluted 1:10 and wherein the initial dissolved oxygen is 40 mg/L if the DO was observed over a 5 day incubation period? -21
9. An organism that obtains both its cell carbon and energy from organic matter produced by others. -heterotroph
10. This convert simple inorganic molecules into organic molecules by the process of photosynthesis.-producer
11. The energy from the sea wave is used to drive turbines to generate electricity. -tidal
12. Which of the following is a consumer that eats meat, but often gets it from animals that died by accident or illness, or that were killed by other animals? -Scavenger
13. It is a component of the ecosystem pertaining to the community of living organisms and the aspects of the environment pertaining directly to them. Biotic.
14. What is the BOD5 of a sample of wastewater with a dilution of 1:10, initial DO of 18 mg/L and final DO of 4 mg/L? 140
15. Which of the following is not a measure of water quality? solids
16. These are interacting groups of organisms in which each organism has a specific niche. Communities
17.
2. What is the 5 day BOD of sugar beet factory wastewater? 10000
3. These are organism that returns organic material to inorganic material; completes recycling of atoms. - Decomposer
4. A kind of interaction in which two organisms strives to obtain the same limited resources, and in the process both organisms are harmed to some extent. -Competition
5. Which of the following renewable energy may cause radical changes in river ecosystems? – tidal
6. A wastewater sample has a k1 = 0.2 day-1 and an ultimate BOD = 400 mg/L. What is the 5 day BOD?- 253
7. These are terrestrial climax communities with wide geographic distribution.- biomes
8. A wastewater sample has a k1 = 0.2 day-1 and an ultimate BOD = 300 mg/L. What is the final dissolved oxygen in a BOD bottle in which the sample is diluted 1:10 and wherein the initial dissolved oxygen is 40 mg/L if the DO was observed over a 5 day incubation period? -21
9. An organism that obtains both its cell carbon and energy from organic matter produced by others. -heterotroph
10. This convert simple inorganic molecules into organic molecules by the process of photosynthesis.-producer
11. The energy from the sea wave is used to drive turbines to generate electricity. -tidal
12. Which of the following is a consumer that eats meat, but often gets it from animals that died by accident or illness, or that were killed by other animals? -Scavenger
13. It is a component of the ecosystem pertaining to the community of living organisms and the aspects of the environment pertaining directly to them. Biotic.
14. What is the BOD5 of a sample of wastewater with a dilution of 1:10, initial DO of 18 mg/L and final DO of 4 mg/L? 140
15. Which of the following is not a measure of water quality? solids
16. These are interacting groups of organisms in which each organism has a specific niche. Communities
17.