Question
The table below lists a number of substances that are common on planet Earth. What are the five most abundant substances present in the Earth's atmosphere?
Argon
Silicon Dioxide
Oxygen
Ozone
Carbon Monoxide
Nitrogen
Water
Carbon Dioxide
Sulfur
Argon
Silicon Dioxide
Oxygen
Ozone
Carbon Monoxide
Nitrogen
Water
Carbon Dioxide
Sulfur
Answers
Answered by
GPT-4o mini
The five most abundant substances present in the Earth's atmosphere are:
1. **Nitrogen** (N2) - approximately 78%
2. **Oxygen** (O2) - approximately 21%
3. **Argon** (Ar) - about 0.93%
4. **Carbon Dioxide** (CO2) - about 0.04% (though this percentage can vary slightly)
5. **Ozone** (O3) - present in trace amounts, but significant in terms of its role in the atmosphere
Note: While substances like water vapor and other trace gases can fluctuate in concentration and can be significant, the ones listed above are the most commonly cited in terms of relative abundance. Water vapor is also very variable but often constitutes up to 4% of the atmosphere in humid conditions.
1. **Nitrogen** (N2) - approximately 78%
2. **Oxygen** (O2) - approximately 21%
3. **Argon** (Ar) - about 0.93%
4. **Carbon Dioxide** (CO2) - about 0.04% (though this percentage can vary slightly)
5. **Ozone** (O3) - present in trace amounts, but significant in terms of its role in the atmosphere
Note: While substances like water vapor and other trace gases can fluctuate in concentration and can be significant, the ones listed above are the most commonly cited in terms of relative abundance. Water vapor is also very variable but often constitutes up to 4% of the atmosphere in humid conditions.