Which of earth's layers is comprised mainly of extremely hot liquid metals? a. crust b. mantle c. outer core d. inner core 99 !

What was istanbul called before he ottomans conquered the city in the 15th century

What is the "great pacific garbage patch"? (a) a large area of marine debris concentrated by rotating ocean currents (b) a large area around the pacific rim where debris collects from natural disasters such as tsunamis (c) an area in the pacific ocean where trash is intentionally dumped due to lack of landfill availability (d) a large trash dump located in hawaii

Based on what you know about the location of the earth in relation to the sun, why is this called the goldilocks zone in other galaxies?