What Percent of Cities in China Lack Sewer Treatment Facilities

question 85

Multiple Choice

What percent of cities in China lack sewer treatment facilities?

• A) 0 percent
• B) 5 percent
• C) 20 percent
• D) 30 percent
• E) 40 percent

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Definitions:

Freeze Frames

A snapshot of the operating conditions of a vehicle's engine at the time of a fault, stored in the engine control unit (ECU) for diagnostics.

Warning Lamp

A visual indicator on the dashboard of a vehicle that alerts the driver to various issues or malfunctions.

Detonation

An uncontrolled, explosive ignition of fuel in an engine's cylinder, causing damage and reducing efficiency.

EGR System

An Exhaust Gas Recirculation System helps reduce nitrogen oxide emissions by recirculating a portion of an engine's exhaust gas back to the engine cylinders.