IB myp 4-5 Chemistry – Practice Questions- All Topics
Topic :The atmosphere -Testing and Treatment
Topic :The atmosphere- Weightage : 21 %
All Questions for Topic : Characteristics of gases,Atmospheric composition,Testing and Treatment,Extraction,Emission and environmental Implications
Question:
China has a large population in global terms and a very large manufacturing sector, but its ethanol production is among the lowest of the nations listed. Why might that be the case? Do you think that this might change in the near future, and if so why?
▶️Answer/Explanation
Ans: China has been investing in alternative renewable energy sources such as solar power and hydroelectricity schemes. China is one of the leading investors in green technology. As the global pressure on clean energy consumption continues to increase, the policies of the Chinese government may begin to shift towards biofuels, as they are the third largest producer of sugarcane.
Question:
What natural resources might explain Brazil’s high ethanol production?
▶️Answer/Explanation
Ans: Brazil is the largest producer of sugarcane in the world. This crop is used in ethanol production.
Question:
Summarize this article for an international audience in no more than 150 words.
▶️Answer/Explanation
Ans: The summaries of individual students will vary.
Question:
What benefits has LCF13 brought to California?
▶️Answer/Explanation
Ans: The reduction in the consumption of petroleum by 39 million gallons and the reduction of carbon dioxide emissions by 187,500 tons.
Question:
What evidence do we have that the combustion of fossil fuels is having a negative impact, causing global warming and climate change?
▶️Answer/Explanation
Ans: One of the main products of the combustion of fossil fuels is carbon dioxide gas. This gas is referred to as a greenhouse gas. The concentration of carbon dioxide in the atmosphere has been
increasing at an accelerated rate throughout the last century and continues today. A corresponding increase in the global mean temperature can be seen in the graphs on page 54.