What began Canada's modern energy industry?

Discover Canada records this in one direct sentence. The guide writes: The discovery of oil in Alberta in 1947 began Canada's modern energy industry. The event the test wants is therefore the discovery of oil in Alberta in 1947.

Three commitments in one sentence. Discover Canada commits the modern-energy origin to THREE specific facts: (1) the discovery of oil; (2) in Alberta; and (3) in 1947. So the source pins down a single event, in one province, in one year, as the start of Canada's modern energy industry.

1947 was a foundational post-war year. Discover Canada writes that the postwar economic boom (1945–1970) saw Canada draw closer to the United States and other trading partners, with one of the strongest economies among industrialized nations. The 1947 oil discovery in Alberta fits within this broader postwar transformation. The same passage continues: "In 1951, for the first time, a majority of Canadians were able to afford adequate food, shelter and clothing." So the late-1940s and early-1950s saw foundational improvements in Canadian living standards — built on the new energy industry among other factors.

Alberta is now the country's energy leader. Discover Canada writes that "Alberta is the largest producer of oil and gas, and the oil sands in the north are being developed as a major energy source. Alberta is also renowned for agriculture, especially for the vast cattle ranches that make Canada one of the world's major beef producers." So the 1947 oil discovery has grown into Canada's largest energy industry — with oil, gas, and the developing oil sands all centred in Alberta. Alberta is also the most populous Prairie province. So when the test asks what began Canada's modern energy industry, the source-precise answer is the 1947 Alberta oil discovery.

The question is testing whether new citizens know the foundational event of Canada's modern energy industry. Discover Canada commits to one event: the discovery of oil in Alberta in 1947. The right test answer matches that.

The wrong answer choices each substitute a different event. The first option is not named in the source as the start. The third option is a transportation event, not energy. "The building of hydroelectric dams in Quebec" is part of Quebec's hydro-electric story but not the named beginning of Canada's modern energy industry. Only the 1947 Alberta oil discovery — the source's exact named event — matches.