In 2011, Japan experienced an earthquake, tsunami, and nucle…

In 2011, Japan experienced an earthquake, tsunami, and nuclear meltdowns. Residents were forced to evacuate. Researchers discovered afterwards that some municipalities had lower mortality levels due to higher levels of trust and social interaction. In these neighborhoods, residents knocked on the doors of neighbors and helped carry the elderly to safety. In this example, what type of neighborhood environment contributed to lower mortality levels?

In 2014, the city of Flint, Michigan switched its water supp…

In 2014, the city of Flint, Michigan switched its water supply and did not treat the water. As a result, the water pipes corroded and lead was leached into the drinking water. Many residents were exposed to elevated levels of lead, which were especially harmful for children and pregnant mothers. What is this an example of?