Which layer of the earth do scientists think is made mostly of metal?
A) The inner core
B) Crust
C) the lithosphere
D) the upper mantal

2pomis which of the following would be a valid hypothesis for a scientific investigation about how transportation affects food security? alcannotatiord foods purchased from the local farmers market. o b. how does the distance a food travels affect its affordability? o e foods that travel great distances cost less than foods bought o d why do local farmers markets have food with such high prices?