CNN10 Sept. 4

What was a significant weather event in the United States during Summer 2025?

• A major drought in the Midwest.

• Record snowfall in the Northeast.

• Widespread flash flooding and record rainfall in several states.

• Unusually mild temperatures across the entire country.

Why are some major city subway systems experiencing increased flooding?

• Lack of regular maintenance and cleaning.

• Aging infrastructure built for a milder climate.

• Recent changes in construction standards.

• Increased passenger traffic overwhelming the systems.

What is one method being implemented to manage stormwater and prevent flooding in urban areas?

• Building taller skyscrapers to divert water.

• Increasing the number of public fountains.

• Installing permeable pavers to allow water to seep into the ground.

• Creating more underground tunnels for water storage.

What causes the phenomenon known as an aurora?

• The reflection of sunlight off polar ice caps.

• The interaction of charged particles from the sun with Earth's magnetic field and atmosphere.

• Volcanic eruptions releasing gases into the upper atmosphere.

• Lightning strikes during severe thunderstorms.

What is the main goal of the National Geographic Photo Ark project?

• To create a comprehensive guide for animal classification.

• To document every animal species on Earth for scientific research.

• To inspire people to care about all species by giving them an equal visual voice.

• To raise funds for building new animal sanctuaries around the world.