Bottom trawling is a method of deep sea fishing in which a large net is used to ravel across the sea floor bed. This causes the destruction of sea floor bed along with habitat destruction residing in close proximity to sea bed. It adversely affects the sea plant, and coral reefs which get uprooted and destroyed.
Hence, the statement "Bottom trawling is a destructive fishing practice that destroys ocean habitats" is true.
Most reasonable answer is the swallowable camera one. mris and cat scans were invented in the 70s and the rest of the answers are around the 1800s or before.
