THE ST. LAWRENCE FREED

The video describes an ice jam on the St. Lawrence River, which had opened for the earliest shipping season on record. Ice breakers worked tirelessly to clear the river, breaking up ice jams over twenty miles long. Once the river was cleared, buoys and lights were set from Quebec to the Gulf of St. Lawrence. The Manchester Miller, one of the first ships through before the jam, was now free to return to Britain with its cargo.

What caused the St. Lawrence River to jam again after being opened for shipping?

• A sudden storm

• Vast fields of ice drifting down

• An earthquake

• A mechanical failure

What was the primary task of the ice breakers on the St. Lawrence River?

• To monitor wildlife

• To build new shipping lanes

• To transport goods

• To clear the ice jam

How did the ice breakers make progress in clearing the ice jam?

• By melting the ice with heat

• By using explosives

• By grinding and smashing into the ice

• By waiting for the ice to melt naturally

What had to be managed once the St. Lawrence River was freed from ice?

• Wildlife conservation

• Tourist activities

• Buoys and lights

• Fishing licenses

What was the destination of the Manchester Miller after being freed from the ice jam?

• Germany

• Britain

• France

• The United States