Global warming is caused mostly by: a. ozone depletion. b. an increase in ultraviolet light reaching the earth's surface. c. the
melting of the stored water in glaciers. d. the accumulation of greenhouse gases in the earth's atmosphere. e. production of SO₂ and NO₂ from burning coal.
Port is nothing but a place for docking, traffic and storage of boats. On the contrary, a harbor is a place for storing boats. Ports are a creation of man, whereas harbors are both natural or man made.
