Because they knew that Germans could sink any ship they want. They could sink civilian ships. Back then, the only way to travel long distances was by boat, because passenger airplanes had not been invented. The Germans could now sink them if they wanted to travel somewhere, so they either risk their life or not go on trips.
Answer:
A newspaper, article, video or any other media created by medical institutions or health professionals.
Explanation:
A source with bias-free information about second-hand smoke and the danger it can cause children with asthma, can only be a source made by healthcare professionals. This is because these professionals or institutions will be able to provide relevant, accurate and rational information that will really inform the reader with concrete facts about passable smoking and the danger for people with asthma.
Provided land as long as worked the land 10 years or so and then the land is yours
The europeans could build more expensive things to sell in life
To be on ppf, the conditions that must hold true will be something like :
- Factors of productions must have increasing returns
- The amount of labor will be similar to the amount of responsibilities.
- There should be capital growth