How long for a letter to go from new york to san franciso?

What is a valid conclusion about the Black Death

Transplanting tomatoes from pots to aquaponics system.

Which conversion factors are used to convert 12 m/s to kilometers per minute? select each correct answer. 1000 m / 1 km 1min / 60 s 1 km / 1000 m 60 s / 1 min

Which geologic feature occurs at a convergent boundary? A) an earthquake B) a river C) an ocean valley D) a rill

Why did large numbers of Africans migrate to the Americas

Dams are often built to generate power. One negative impact of damming a river is reduced flow downstream water storage to battle a drought increased recreation opportunities flood control

What three cities form the global centers of economic activity?

Describe and explain the physical and/or chemical methods used to refine the coal

Explain the characteristics of authoritarianism, and identify two Central Asian countries that have this type of government

Why are the rivers so vital to europe's economy?