Read the following passage and answer the question: A SPACEX rocket was launched from California carrying a US-French satellite designed to conduct the first global survey of the Earth's Surface waters, shedding new light on the mechanics and consequences of climate chantge. The Surface Water and Ocean Topography satellite, or SWOT, incorporates advanced microwave radar technology to collect high definition measurements of ocean, lakes, reservoirs and rivers over 90% of the globe. The data compiled from radar sweeps of the planet at least twice every 21 days, will be used to enhance ocean-circulation models, bolster weather and climate forecasts and aid in managing scarce freshwater supplies in drought-stricken regions. Components of the SUV sized sattellite were built primarily by NASA's Jet Propulsion Laboratory near Los Angeles and the French space agency CNES. Nearly 20 years in development by the US space agency with contributions from its counterparts in Canada and Britain, SWOT was one of 15 missions listed by the National Research Council as projects NASA should undertake in the coming decade. One major thrust of the mission is to explore how oceans absorb atmospheric heat and carbon dioxide in a process that naturally regulates global temperatures and has helped to minimize climate change.
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Oceans help in minimizing climate change. Reason R: Oceans absorb carbon dioxide. In the light of the above statements, choose the most appropriate answer from the options given below:
The question asks us to evaluate two statements, Assertion A and Reason R, based on the provided passage about the SWOT satellite mission and its relation to climate change.
Analyzing Assertion A: Oceans and Climate Change
Assertion A states: Oceans help in minimizing climate change.
Let's look at the passage. It mentions: "One major thrust of the mission is to explore how oceans absorb atmospheric heat and carbon dioxide in a process that naturally regulates global temperatures and has helped to minimize climate change."
Based on this sentence, the passage explicitly states that the absorption process by oceans "has helped to minimize climate change". Therefore, Assertion A is supported by the passage and is considered correct.
Analyzing Reason R: Oceans Absorb Carbon Dioxide
Reason R states: Oceans absorb carbon dioxide.
The same sentence from the passage is relevant here: "One major thrust of the mission is to explore how oceans absorb atmospheric heat and carbon dioxide..."
The passage directly states that oceans absorb carbon dioxide. Therefore, Reason R is also supported by the passage and is considered correct.
Analyzing the Relationship between A and R
Now we need to determine if Reason R is the correct explanation for Assertion A. Assertion A says oceans help minimize climate change, and Reason R says oceans absorb carbon dioxide. The passage links these two ideas together.
The passage says that oceans absorbing heat and carbon dioxide is "a process that naturally regulates global temperatures and has helped to minimize climate change." This indicates that the absorption of carbon dioxide (along with heat) is the mechanism by which oceans help to regulate temperatures and minimize climate change.
Therefore, the absorption of carbon dioxide by oceans provides a valid reason or explanation for how oceans contribute to minimizing climate change.
Conclusion based on Analysis
Based on the analysis:
- Assertion A is correct: Oceans help in minimizing climate change.
- Reason R is correct: Oceans absorb carbon dioxide.
- Reason R correctly explains Assertion A, as the absorption of carbon dioxide is a key process by which oceans minimize climate change, as stated in the passage.
Thus, both statements are correct, and Reason R is the correct explanation for Assertion A.
Revision Table: Statements and Analysis
| Statement | Content | Analysis from Passage | Correct/Incorrect |
|---|---|---|---|
| Assertion A | Oceans help in minimizing climate change. | Passage says absorption process "has helped to minimize climate change". | Correct |
| Reason R | Oceans absorb carbon dioxide. | Passage says oceans "absorb... carbon dioxide". | Correct |
| Relationship A & R | R explains A? | Passage links absorption of carbon dioxide to minimizing climate change. | Yes, R explains A. |
Additional Information: Oceans Role in Climate Regulation
Oceans play a crucial role in regulating Earth's climate system. Here are some key ways:
- Carbon Sink: Oceans absorb a large amount of atmospheric carbon dioxide, which helps to reduce the greenhouse effect and slow down global warming. This absorption happens through physical, chemical, and biological processes.
- Heat Sink: Oceans absorb vast amounts of heat from the atmosphere. This helps to moderate global temperatures, although rising ocean temperatures can have significant impacts on marine ecosystems and sea levels.
- Circulation: Ocean currents distribute heat around the globe, influencing weather patterns and regional climates. Changes in ocean circulation can lead to significant climate shifts.
- Water Cycle: Oceans are the primary source of atmospheric moisture, driving precipitation and other weather phenomena.
The SWOT satellite mission, as mentioned in the passage, focuses on measuring surface water, which contributes to understanding these complex processes and their interaction with climate change.
Important Questions from Reading Comprehension
Why, according to the writer can't people be motivated to use a resource prudently?
1. They feel that others may overuse the resource
2. It is possible to substitute the resource
3. Abundance of the resource availability
Select the correct answer using the code given below:
When do people use resources exhaustively?
The self-interest of people affects the use of renewable resources
People rooted in a locality
Which among the following is closest in meaning with the word 'deplete'?
