Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling.
True
this is because the earth is part of the troposphere and we have those particles on the earth.
Hey there! I'm happy to help!
Let's see where the word tumultuous is used here:
Magellan named the ocean Pacifico (Pacific) which means peaceful because, compared to the tumultuous strait they had just been through, the ocean was amazingly calm.
We see that they named the ocean the Pacific Ocean because it was very peaceful and calm compared to a tumultuous strait. This shows us that tumultuous is probably the opposite of peaceful. It probably means crazy, hectic, rough, harsh, etc. After going through a crazy thunderstorm, a light sprinkle would seem very peaceful, which is similar to how Magellan probably feels here.
This definition matches best with answer A. rough and uncertain.
Have a wonderful day! :D
