Seudónimo Seudónimo

02-01-2017
Chemistry

contestada

Greenhouse gases make up what percentage of Earth's atmosphere? A. less than 1% B. between 1% and 5% C. between 5% and 20% D. over 20%

Respuesta :

margaretjohnson margaretjohnson

02-01-2017

the correct answer is C

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