The best reference to use will be AN ATLAS.
An atlas is a collection of maps. A map is a pictorial representation of an area of land or sea which shows all the physical features of that particular place. Many information about different places can be obtained from maps and these include the longitudes of different places.
The answers are:
a. physical geography
b. human geography
Geography is divided into two main branches, physical geography, and human geography, and after that, they branch out much more and include the other geographical disciplines in them.
Physical geography is mainly concerned with the study of the natural characteristics of the Earth, both the ones on the surface and the once close to the surface.
Human geography is mainly focused on the study of the human race, the background, perceptions, interactions, organizing, human groups, effects on and from the environment etc.
Because after all if the natural things die we will too assuming most people depend on nature's vegetation to live
Yes. It looks like they share about 51 miles of common border,
and I have one map that says it's dry land, not part of the lake.