9 Questions
Within a few hours of human disappearance, ______ around the world would shut off due to lack of maintenance at power stations.
lights
In 2-3 days, ______ systems in cities like New York would flood.
subway
After a month, emergency generators that cool ______ reactors would fail.
nuclear
In about a year, thousands of ______ orbiting the planet would crash down and burn up in the atmosphere.
satellites
In 2 years, ______ and cockroaches would die off in cities with cold climates.
rats
Within a couple hundred years, ______ and towers would corrode and collapse.
bridges
After about 300 years, large ______ and sea animals like whales would thrive without human interference.
land
In 500 years, ______ would reclaim suburban neighborhoods.
forests
10,000 years later, the only evidence of human existence left on earth would be giant ______ structures made of stone.
eroded
Study Notes
• Within a few hours of human disappearance, lights around the world would shut off due to lack of maintenance at power stations. • Hydroelectric, solar, and wind power would last longer, but eventually malfunction and break down. • In 2-3 days, subway systems in cities like New York would flood and sewers would clog. • After a month, emergency generators that cool nuclear reactors would fail, leading to massive nuclear meltdowns worldwide. • In about a year, thousands of satellites orbiting the planet would crash down and burn up in the atmosphere. • In 2 years, rats and cockroaches would die off in cities with cold climates due to lack of human-provided warmth and food. • In 20-30 years, desert cities like Las Vegas would be reclaimed by nature. • Within a couple hundred years, bridges, towers, and tall buildings would corrode and collapse. • After about 300 years, large land and sea animals like whales would thrive without human interference, and their population numbers would increase. • In 500 years, forests would reclaim suburban neighborhoods. • After a thousand years, large cities would be entirely overgrown with vegetation. • 10,000 years later, the only evidence of human existence left on earth would be giant eroded structures made of stone, such as the pyramids, the Great Wall of China, and Mount Rushmore. • The Voyager 1 spacecraft, carrying a golden record with messages and greetings from earth, would last for the next billion years and travel farther into space.
Imagine a world without humans. What would happen to the planet, its infrastructure, and its wildlife? Take this quiz to find out what would occur in the hours, days, and years following human extinction. From power outages to nuclear meltdowns, and from rats to whales, discover the fascinating consequences of a human-less world.
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