The answer is simple Neptune because it is the only blue planet.
Its spread mainly because of the pest rats and also fleas
The greatest hazard to homes are when they are built on mountains
It lies on the Indian Ocean side of the continent, almost entirely within the Eastern Hemisphere – hence the name “East Antarctica”. The region includes the South Magnetic Pole, the Geographic South Pole, the Ross, Scotia and Weddell Seas and the Shackleton Ice Shelf.
Endemic diseases result in a decreasing population, so with that said you can rule out choices B and D.
Among the two left, letter A is the most appropriate answer. Not all endemic diseases have an effect on the number of children a population will have. So if we are speaking about endemic diseases in general, the answer is:
A. Endemic diseases can result in decreasing population numbers: many people die form diseases, and others move away from or avoid moving to places where diseases are rampant.
