Why does an explorer have to have some patience?

Something may go wrong, and if an explorer doesn’t have patience, then it is unlikely that they will succeed. Patience leads to success. Because eventually, something will go right and the explorer will either find something, or achieve something.

"A lack of patience increases the chance of something going wrong. One mistake, however small, can have a huge bearing on the success of the expedition."

Hope this helps:)

It should be at the center of any map going vertically: the prime meridian, as it passes through greenwich,  england, is considered 0 degrees longitude