Human is unevenly spread over the habitable parts of the Earth’s surface. A. Population Density
B. population distribution
C. community arrangement
D. organizational structure

What was the first official pair of sister cities?

According to the earth science reference tables, during which geologic time period were the continents of north america,south america, and africa closest together?

Which of these is a drawback of using natural gas? a. it is fairly safe for use in homes.b. it burns more cleanly than crude oil products.c. scientists have developed new ways of extracting it.d. during its extraction, groundwater can be contaminated.