Yes the area in which Saudi Arabia is, is a peninsula because it is surrounded by the persian gulf, Red Sea and the Indian Ocean
It’s B, they sometimes do follow the borders of countries
Physical features affect how houses are built and what materials are available it also affects trade. Climate effects vegetation, the style of clothing, in water source. vegetation varies, as so, food does as well. Specific animals eat specific vegetation ect…
I believe they are both located near active volcanos :)
I’m going to go with the day/night cycle and seasons. Those are 2 results of the rotation from the earth.