A boundary is a real or imaginary line that separates two things. In geography, boundaries separate different regions of the Earth. There are many different types of boundaries.
Answer:
Death Valley is known for extremes: It is North America's driest and hottest spot (with fewer than two inches/five centimeters of rainfall annually and a record high of 134°F), and has the lowest elevation on the continent—282 feet below sea level.
Explanation:
According to https://www.nationalgeographic.com/travel/national-parks/death-valley-national-park/
movement of charged particles in the outer core
Do you mean answer?
If so, the round goby is an invasive species because of the negative impact it has in the enviroment is it living in. A species is considered "invasive" because of the damages it is doing to the enviroment around it also the species may not even be native to that area.
