<span>Much of the commercially important waterways of the United States consist of the Mississippi River System—the Mississippi River and connecting waterways. .... States on the Gulf Coast and throughout the Midwest and Ohio Valley ...</span>
Answer:
$47.76 hope this helps :)
Explanation:
Mark Brainliest please
Answer :
Explanation
The term geography was first coined by Eratosthenese, a Greek scholar (276-194 BC.). The word has been derived from two roots from Greek language geo (earth) and graphos (description).
Geography is concerned to provide accurate, orderly, and rational description and interpretation of the variable character of the earth's surface.” In his work, Perspectives on the Nature of Geography, he further clarified his position by stating that the goal of geography is comprehension of the earth's surface,
The appropriate answer is a. the temperature is high enough but pressure low enough to melt iron. The earth's core is composed of two layers; the inner and outer core. Both layers are composed mainly of iron and nickel. The main difference between the two layers is that the inner core is solid and the outer core is liquid. The inner core is solid because of the pressure created by the overlaying layers; the outer core, mantle and the crust. The inner core is however hotter than the outer core.
The answer is b because the other ones are involved in environmental science
