Question

natural disaster violent conflict demographic changes causes food insecurity and damage to infrastructure thousands of people fled a lack of food, shelter, and clean water in haiti following a devastating earthquake. causes a lack of jobs and competition for resources and opportunities; overpopulation in niger led to job scarcity, motivating many people to migrate to nearby countries to find work. causes threat of death and injury and disrupts normal economic activities; millions of ukrainians became refugees following an invasion by russian military forces that devastated towns and cities.

Explanation:

1. For the first description about Haiti's earthquake causing food insecurity, infrastructure damage, and people fleeing due to lack of basic resources, this is related to a natural disaster. So it should be matched with "natural disaster".
2. The second description about overpopulation in Niger leading to job scarcity and migration is about changes in population (demographic changes) causing these issues. So it should be matched with "demographic changes".
3. The third description about the Russian military invasion of Ukraine causing death, injury, and disrupted economic activities with millions of refugees is related to violent conflict. So it should be matched with "violent conflict".

Answer:

1. The first box (Causes food insecurity...earthquake) matches with natural disaster.
2. The second box (Causes a lack of jobs...find work) matches with demographic changes.
3. The third box (Causes threat of death...cities) matches with violent conflict.