A chemical that is capable of being broken down into harmless products by living organisms such as those found in a wastewater treatment facility is considered:
a. environmentally friendly.
b. user friendly.
c. biodegradable.
d. neutral.
c. A biodegradable chemical is capable of being broken down into harmless products by living organisms such as those found in a wastewater treatment facility.
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A patient has sustained an injury to his mediastinum. Based on the anatomy of his chest, which of the following structures may have been injured?
a. The diaphragm b. The esophagus c. The lungs d. A bronchus
Which of the following is due to dilated veins, causing their valves to become incompe-tent?
a. Varicose veins b. Thromboangiitis obliterans c. Hemangioma d. Anemia
A patient's insurance information is collected on a ________________________________________
Fill in the blank(s) with correct word
The oxygen tank size best suited for a dental office is the E cylinder.
Answer the following statement true (T) or false (F)