The gas occupying the highest percentage of atmospheric air is:
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
Correct Answer: Option B
Explanation:
Nitrogen forms about 78% of atmospheric air, making it the most abundant atmospheric gas.
Nitrogen forms about 78% of atmospheric air, making it the most abundant atmospheric gas.