How many significant figures are involved in each conversion factor? (Note: if the conversion is an exact conversion, write "infinite".) 2.2 lb/ 1 kg

That result from subduction of oceanic plates beneath lighter continental plates. most of the earth's volcanoes are located around the pacific ring of fire because that the location of most of the earth's subduction zones.

The answer is a) carbon-12

The correct answer is "hydrogen".

Hope you find the answer