www.bbcnoun.com.ng EMT304 10/10 1. …….. can be regarded as a narrow group of substance that is capable of causing death or various injuries to human beings and animals Toxic 2. The most common type of sub surface disposal method in marine environment is known as____ system deep well disposal 3. ….is a process in which oxidation and removal of organic occurs in separate tank Contact stabilization 4. Sludge produced during the treatment of waste water is digested in the absence of ___________ molecular oxygen 5. Which of these is not one of the several ways in which hydrocarbon can be treated in the soil ___________ bacteriology 6. The most common types of incineration system include all the following except ___________ Single hearth 7. …... a basin in which microorganism used for biodegradation mixed with waste water Aerated Lagoon 8. Which of these is not one of the several ways in which hydrocarbon can be treated in the soil ___________ bacteriology 9. The final disposition of waste after various treatment applied to minimize short term hazard to man and the environment is generally termed as ___________ ultimate disposal 10. 1-5 days