Question

1. which model best represents the volume of each gas in the troposphere? a) pie chart with nitrogen, oxygen, hydrogen, water vapor, other gases b) pie chart with nitrogen, oxygen, other gases c) pie chart with hydrogen, oxygen, argon, other gases d) pie chart with oxygen, nitrogen, carbon dioxide, water vapor, other gases

Explanation:

To determine the best model for the volume of each gas in the troposphere, we recall the composition of the troposphere (part of Earth's atmosphere). The troposphere is mainly composed of nitrogen (about 78%) and oxygen (about 21%), with small amounts of other gases (like argon, carbon dioxide, water vapor, etc.).

• Option A: Shows hydrogen as a large portion, which is incorrect (hydrogen is not a major gas in the troposphere).
• Option B: Has nitrogen as the largest portion (consistent with ~78%), oxygen as the next (consistent with ~21%), and a small "other gases" segment. This matches the known atmospheric composition.
• Option C: Shows hydrogen as the largest gas, which is wrong.
• Option D: Shows oxygen as the largest, which is incorrect (nitrogen is more abundant).

Answer:

B. Nitrogen (large portion), Oxygen (smaller portion), Other Gases (smallest portion)