Answer:
Explorers dealt with challenges when finding money for their voyage, navigating in uncharted waters, and surviving the long, dangerous journey.
Explanation:
The text talks about exploration and how sailors went through many challenges especially when they didn't know what they were getting into.
Answer:
The classical conditioning process is Spontaneous Recovery. After Mariah took simming lessons, her fear of the water disappeared (known as extinction of the conditional response). But as soon as she stepped onto the raft, she felt a re emergence of her fear, suffering the same emotions she felt at the first time.
D. Opportunity cost
Because in the end if you want something you have to work for it, no matter what. Everything generally costs money in this world