Question: The ink is released from the ink sacs (located between the gills) and is dispersed more widely when its release is accompanied by a jet of water from the siphon. Its dark colour is caused by its main constituent, melanin. Each species of cephalopod produces slightly differently coloured inks; generally, octopuses produce black ink, squid ink is blue-black, and cuttlefish ink is a shade of brown. is squid ink the same as cuttlefish ink

Answer: no

Question: 47 Meters Down is a British-American 2017 survival horror film directed by Johannes Roberts, written by Roberts and Ernest Riera, and starring Claire Holt and Mandy Moore. The plot follows two sisters who go on holiday in Mexico, and are invited to cage dive and see sharks up close. When the cable holding the cage breaks and it plummets to the ocean floor with the two girls trapped inside, they must find a way to escape, with their air supplies running low and great white sharks stalking nearby. is 47 meters below based on a true story

Answer: no

Question: In internal combustion engines, exhaust gas recirculation (EGR) is a nitrogen oxide (NO) emissions reduction technique used in petrol/gasoline and diesel engines. EGR works by recirculating a portion of an engine's exhaust gas back to the engine cylinders. This dilutes the O in the incoming air stream and provides gases inert to combustion to act as absorbents of combustion heat to reduce peak in-cylinder temperatures. NO is produced in a narrow band of high cylinder temperatures and pressures. Another primary benefit of external EGR valves on a spark ignition engine is an increase in efficiency, as charge dilution allows a larger throttle position and reduces associated pumping losses. is the egr valve part of the engine

Answer:
yes