Crude oil is separated into useful compounds by:
a. fractional distillation
c. electrolysis
b. differential cooling
d. compression

On venus, which of the following drives geological change? a. hurricanes b. volcanoes c. tsunamis d. earthquakes

What is the mostly tropical region in asia

Sam hated the long nights of winter! his mother called him in from playing so early: around 4: 30 pm! it is usually dark out when sam is eating supper. what letter represents the long nights where sam lives? a) a. b) b. c) c. d) d.