A great example of a physical boundary is a mountain. For example, the Pyrenees Mountains, which serve to separate France and Spain, are a physical boundary. So are the Ural Mountains which separate Europe and Asia. Along with mountains, oceans, seas, even deserts are examples of physical boundaries.
An average size apple weighs 6.4 ounces, which is equal to 180  grams. One apple contains approximately 91 calories and 3 grams of  dietary fiber.
To get a sense of just how heavy the new iPhone is compared to older models, Dadaviz put together a chart chronicling every different iPhone modelâs weight and it shows a steady progression upward in recent years. As you can see, the iPhone 5 and the iPhone 5s were Appleâs lightest iPhones and weighed in at only 112 grams.