What physical feature in South America creates the dryness of the Atacama desert as well as the wetness of the Amazon basin

The earth's inner core reaches temperatures that are at times greater than 9000°f. what causes this layer to remain solid despite the high temperature?

Which search pattern would be best suited for a crime scene where many investigators are available to search a large area? a. spiral b. grid c. line d. zone

In the diagram below dab and dac are adjacent angles