Question bank: Air Composition

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Question 1:

Easy

Imagine you are a scientist who has just discovered a new planet and, upon analyzing the atmosphere of this planet, you noticed that the 'air' is composed of different gases. Applying your knowledge about the composition of Earth's air, which is a mixture of approximately 78% nitrogen, 21% oxygen, 0.04% carbon dioxide, and other gases in smaller quantities, how would you identify and explain the composition of the 'air' of this new planet?

Air Composition

Contextualized Question

Question 2:

Medium

Imagine you are participating in an air purification experiment, where it is essential to understand the composition of different gases present in the atmosphere for the project's success. The air around us is a mixture of various gases, with the majority being nitrogen (N2), followed by oxygen (O2), and a small amount of carbon dioxide (CO2). When conducting a purification experiment, it is important to know not only the percentage composition of these gases but also how they interact and what happens if we alter this composition. Based on your knowledge, answer the following questions: 1) What are the approximate percentages of nitrogen, oxygen, and carbon dioxide in the standard atmosphere and what is the function of each of these gases for biological and environmental processes? 2) Considering that carbon dioxide is an atmospheric pollutant that contributes to global warming, what would be the effect on the purification experiment if we increased the percentage of this gas in the purified mixture?

Air Composition

Theorical Question

Contextualized Question

Question 3:

Hard

Air Composition

Question 4:

Easy

Water vapor is the liquid form of water found in the air. Water vapor is formed when water evaporates and transitions into the gaseous state. When water vapor condenses, it forms clouds. What are the main factors that influence the amount of water vapor present in the atmosphere?

Air Composition

Contextualized Question

Question 5:

Medium

We know that the air we breathe is a mixture of different gases, each with its own properties and importance for life on Earth. Some human activities, such as the burning of fossil fuels, can affect the composition of the air. Based on this knowledge, do the following: a) Identify the main components of the air, indicating their respective percentages; b) Explain how the burning of fossil fuels can alter the composition of the air; c) Describe two impacts of this alteration in the composition of the air on life on Earth and the environment.

Air Composition

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