Final answer:
The scientist's observation of more jellyfish than normal washing up on the beach and an abundance of trash in the area suggests a cause and effect relationship between littering and its negative impact on sea life. By writing a letter to the home owners in the area, the scientist can show them how littering negatively affects sea life and propose solutions to minimize the impact.
Step-by-step explanation:
The scientist's observation of more jellyfish than normal washing up on the beach and an abundance of trash in the area suggests a cause and effect relationship between littering and its negative impact on sea life.
When people litter, the trash can end up in the ocean, posing a danger to marine animals. They can become entangled in floating trash or mistake it for food, leading to injury or death. By writing a letter to the home owners in the area, the scientist can show them how littering negatively affects sea life and propose solutions to minimize the impact.