Question

which of the following statements is true regarding used engine oil? select one: a. used oil contains dangerous chemicals and impurities. b. used oil should be safely recycled. c. used engine oil should be disposed of in an environmentally friendly way. d. all of the choices listed are correct.

Explanation:

• Option a: Used oil contains contaminants like metals, detergents, and combustion by - products which are dangerous chemicals and impurities.
• Option b: Recycling used oil is a common and proper practice to prevent environmental pollution.
• Option c: Disposing of used engine oil in an environmentally friendly way (such as recycling) is necessary.
• Since all of these statements (a, b, c) are correct, option d is the right choice.

Answer:

d. All of the choices listed are correct.