The Rotterdam Subway Was Built by

question 35

Multiple Choice

The Rotterdam subway was built by

• A) Raising the tunnel on stilts to keep it above the local water table.
• B) Building the tunnel in segments which were flooded, sunk into position, then joined and pumped dry.
• C) Draining water from below the city to allow excavation of a dry tunnel.
• D) Baking the ground to harden the clays, then blasting the tunnel through.

---

Definitions:

Organic Chemistry

A branch of chemistry that studies the structure, properties, composition, reactions, and preparation of carbon-containing compounds, which include not only hydrocarbons but also compounds with any number of other elements, including hydrogen, nitrogen, oxygen, halogens, phosphorus, silicon, and sulfur.

Reaction

A method whereby one or more materials (known as reactants) are transformed into one or more distinct materials (referred to as products).

Major Product

The product of a chemical reaction that is formed in the greatest amount, differentiated by its higher yield in contrast to minor products.

Stepwise Mechanism

A reaction mechanism that occurs through a series of discrete intermediates and transition states, rather than in a single concerted step.