6 because 2 x 3 is the way to go because 2+4=6
Answer:
Its creates air pullution, Burning of fossil fuels produces oxides of carbon, nitrogen, sulphur, etc. that cause acid rain, which affects the soil fertility and water.
Explanation:
950 A.D. Named after the Norse fire god Surtur, Surtsey (Surtur's island) is one of the world's newest islands. In November 1963, Surtsey was formed in a volcanic eruption which heaved it up out of the waters 18 km (11 mi) south-west of Heimaey; 32 km (20 mi) off the south coast of Iceland.
By breaking down food particles gradually