Brain › Science & NatureWhat is the thin, outermost layer of the Earth?ExosphereCrustMantleOuter CoreAnswerThe correct answer is B) Crust.More Science & Nature questionsWhich Apollo mission was the first one to land on the Moon?Which element has the chemical symbol 'Fe'?What is the atomic mass of Carbon?What is the standard SI unit for luminous intensity?Which of these chemical compounds is NOT found in gastric acid?What is the molecular formula of Ozone?Play Brain · Practice