Answer: The choice of a submarine to either sink or float depends on the captain of that submarine. For a submarine to sink the captain just have to allow water to fill the water tank (lock), making the submarine more dense than the water it has displaced. For it to float, it just have to empty the water tank and allow air to fill it.
When a boat in a canal lock sank, the water level will rise, because the volume of the boat has displaced more water, and this displaced water will cause the water level to rise. The space occupied by an object in a water, is equal to the volume of water been displaced.
Answer:
Placenta
Explanation:
The placenta is an organ which are not permanent in a pregnant woman body and it functions is to help connect the fetus through the umbilical code to the uterine wall in other to allow the fetus to receive nutrient through the blood supply by the mother.
Placenta helps to fight against internal infection by blocking some kinds of viruses and bacteria from passing into the fetal circulatory system and help to removes waste products from the baby's blood.
He tells John that he would like the "experiment" (of John living in London society) to continue. In other words, he is interested in continuing to experiment with John's life at John's expense.
