CAPE Environmental Science Unit 2 · 2010 · Paper 2 · Question 7(a)(ii)
Why is nitrogen dioxide considered a secondary air pollutant?
The mark scheme is shown once you've answered.
Practise this questionWhy is nitrogen dioxide considered a secondary air pollutant?
The mark scheme is shown once you've answered.
Practise this questionMore practice: the rest of this paper · more Atmospheric Pollution and Global Atmosphere Issues questions · all CAPE Environmental Science Unit 2 past papers