There are two main ideas for each passage, in the first one it mentions the positive outcomes of having a pet in class; it can help children with health problems and nervousness in students will decrease. In this sentences it supports the idea of a pet in class, saying the positive results of it and how it helps or it will help children.
In the second passage it mentions the negative outcomes of having a pet in class; they will make some health problems worst and the nervousness in students will increase around them. These two ideas are against the possibility of having a pet in class, mentioning how it will affect students instead of helping them.
What makes these two passages different is the opinion towards one main idea: pets in class. One passage supports it and one is against it.
Both are equally as important. It’s great to learn from your own mistakes because you suffer the consequence or thrive in the reward. But same for learning from others. If you are surrounded by people who are a bad influence, they may suffer the consequences of their actions and you will know not to make the same mistake they did. If you surround yourself with a good group of people, they may be rewarded for something they did or an achievement they reached, so it may encourage you to do better or be a better person like your friends.
Option A will only work if the sentence was "Each size of a pallet is approximately as large as the size of a refrigerator..."
The Atlantic Ocean around the North Pole is ice-covered.
Basically, the quote means that this lady has lived a long, tired, and hardworking life. Her soul is at rest because she is satisfied with the life that she lives.
