Answer: earthquakes
Explanation: I had the same question and that was the answer
The opening of the Panama Canal affected transportation because now, sailors didn't have to sail ALL the way around South America.
1, I want to say in the mid atlantic.
2. you use the scale on the bottom left to answer so it 1cm=405km.
3. I think you pick a line on the picture and that's the age, but I'm not to sure because I don't see a key. I hope this helps.
Answer:
Aquatic areas and wet locations such as marshes
