How did improved ship designs and new tools make it safer to explore by sea

Ships got rudders and moveable sails. With these they were able to move better and catch winds rather than just sitting waiting for wind. Tools for navigation improved as well. The astrolabe was invented to allow the use of longitude and latitude settings. Ships were also bigger.

the correct answer is ) possibility.

demonstrating opportunity cost is done through production possibility.

the opportunity cost can be demonstrated using the production possibility frontier or curve. this graphic shows the total number of possibilities for two products when we have the resources needed and used in an efficient manner. the main resources could be money, labor, and technology. the curve shows that the production of one good increases when the production of the othe