Hover or tap underlined Spanish terms to see their translation and exam tip.
¿Cuáles son los principales gases que componen la atmósfera y su proporción aproximada?What are the main gases in the atmosphere and their approximate proportions?
Show the answer
Correct answer: a) Nitrogen (78.09 %), Oxygen (20.94 %), Argon (0.94 %), Carbon dioxide (0.03 %).
Why it is correct
Air is nearly four fifths nitrogen and one fifth oxygen.
Why the others are not
- b) It swaps nitrogen and oxygen.
- c) CO2 is a trace.
- d) CO2 is a trace.
How to work it out in the exam
- 78 nitrogen, 21 oxygen.
Where this question comes from
- Ministerio de Transportes (Madrid) · 2023 · Convocatoria de noviembre · CY Test 1 · question 22 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2023 · Convocatoria de noviembre · CY Test 2 · question 21 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.