What is one example of the use of an infrared sensor? A. water flows without turning on a faucet
B. monitor building entry and exit
C. track shipment of packages
D. bar code scanners keep up with inventory supplies

According to this map, which of these statements about cuban economic activity is true? a) coffee is not a valuable commodity in cuba. b) cattle ranching is found only in the western half of cuba. c) tobacco is grown in most areas of the country. d) manufacturing is limited to mostly the southern coast.