Catalytic converters reduce the engine's tailpipe emissions of unburned hydrocarbons and carbon monoxide and can be recycled.

True

Explanation:

Below is a cut and paste.  Also read where recycling shops will pay up to $200 to harvest the precious metals used in catalyst process.  Thieves will actually steal them from parked cars!!

Catalytic converters also use an oxidative catalyst composed of platinum or palladium. It helps reduce hydrocarbons (HC) and carbon monoxide (CO). To start with, carbon monoxide and oxygen combine to form carbon dioxide (CO2). Then, unburnt hydrocarbons and oxygen combine to form carbon dioxide and water.

Oxidation reactions for carbon monoxide and unburned hydrocarbons

answer:

on fri feb the green land, the only one who can