The correct answer is - a. having differences.
The term heterogeneous is a term used to describe something that is different, that is not the same, or that there's multiple different things. This term can be used for various different things, including human societies, geography, biodiversity, etc.
In the human society, heterogeneous, is used as term when there's societies where multiple different ethnic groups live in a same area, or different racial groups, it may also be used in a manner of representation of the sexes in a particular filed or job, even the architecture and the infrastructure.
The answer is D. The crust.
We’re standing on the crust. This is the outermost layer.
Between the bottoms of two convection cells
Answer Continents can change in size while tectonic plates stay the same.
Explanation:
Answer: Appalachian Mountains, Rocky Mountains, Great Lakes, Lake Superior, Missisippi River, Great Plains, Silicon Valley, Atlantic Ocean, Pacific Ocean, Mount McKinley.
Explanation: Sir I'm pretty sure you could've just looked these up, but those are all the Geographic features I can think of,