Q211. The primary goal of the Paris Agreement (2015) is to limit the global temperature increase in this century to:
Health, Environment and Agriculture: RAS Prelims MCQs
662 RAS Prelims practice MCQs on health, environment and agriculture are on this page, in 4 chapters. They cover human health, food, nutrition and public health programmes, environmental and ecological changes and impact assessment, biodiversity and conservation of natural resources, and agriculture, horticulture, forestry and animal husbandry in Rajasthan. Each question has an answer and an explanation.
Practice questions based on the RPSC RAS Prelims syllabus. They follow the exam pattern but are not past-paper questions.
Showing 211–220 of 662 questions
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Q212. ‘Nationally Determined Contributions’ (NDCs) are a key element of which international agreement?
Explanation
Under a significant global climate treaty, each participating country must outline and communicate its individual efforts to reduce national emissions and adapt to the impacts of a changing climate. These voluntary commitments are updated regularly to reflect increasing ambition. This approach allows for a flexible yet coordinated global response, with each nation contributing according to its own capabilities and circumstances.
Q213. Which of the following is considered an adaptation measure rather than a mitigation measure in climate change?
Explanation
While many actions focus on reducing the causes of climate change, others are designed to help communities cope with the inevitable effects. For example, building infrastructure to protect coastal areas from rising sea levels is a practical way to manage risk. Unlike shifting to renewable energy or planting trees, these physical interventions directly address the consequences of a warmer world and shifting weather patterns.
Q214. The Intergovernmental Panel on Climate Change (IPCC) was established by:
Explanation
A leading international body for the assessment of climate change was created through the collaboration of two major global organizations. One focused on environmental issues and the other on weather and climate patterns. Their goal was to provide policymakers with regular scientific assessments regarding the physical basis of climate change, its potential impacts, and various options for mitigation and adaptation strategies worldwide.
Q215. Regarding the impacts of climate change, consider the following statements:
I. It leads to the shifting of climatic zones and altered rainfall patterns.
II. It results in the global decrease of sea levels.
III. It increases the frequency of extreme weather events like hurricanes and droughts.
Which of the above statement(s) is/are correct?
I. It leads to the shifting of climatic zones and altered rainfall patterns.
II. It results in the global decrease of sea levels.
III. It increases the frequency of extreme weather events like hurricanes and droughts.
Which of the above statement(s) is/are correct?
Explanation
A warming planet leads to numerous significant alterations in the Earth’s systems. These include changes in where different climates are found and how much rain falls in various regions. Furthermore, the intensity and frequency of severe weather events like powerful storms and prolonged dry spells are increasing. However, instead of falling, the levels of the world’s oceans are actually rising due to melting ice.
Q216. What does "Net Zero" emission mean in the context of climate change?
Explanation
Achieving a balance between the amount of greenhouse gases produced and the amount removed from the atmosphere is a critical environmental goal. This state does not mean all emissions must stop completely, but rather that any remaining releases are offset by natural or technological processes that capture and store the gases. This approach is seen as essential for stabilizing the global climate system.
Q217. Ocean acidification, often called the "evil twin" of climate change, is caused by:
Explanation
As human activities increase the amount of carbon dioxide in the atmosphere, a significant portion of this gas is absorbed by the world’s oceans. When this gas dissolves in seawater, it undergoes a chemical reaction that increases the water’s acidity. This change makes it difficult for many marine organisms, such as corals and shellfish, to build their shells and skeletal structures.
Q218. Which of the following represents the odd one out regarding India’s declared climate targets (Panchamrit) at COP26?
Explanation
During a major climate summit, India announced a set of five ambitious targets to address global warming. These goals include significantly increasing renewable energy capacity and reducing total carbon emissions by the end of the decade. While the nation has committed to achieving a balance between emissions and removals, the specific target year for this milestone is set later than for many other countries.
Q219. The greenhouse effect refers to:
Explanation
The greenhouse effect is the trapping of heat by atmospheric gases such as carbon dioxide, methane and water vapour, which keeps the Earth warm.
Q220. Which of the following greenhouse gases has the highest Global Warming Potential (GWP) per molecule?
Explanation
Different gases vary in their ability to trap heat and their lifespan in the atmosphere. One specific industrial gas is known for being extremely effective at absorbing radiation, making it thousands of times more potent than carbon dioxide on a molecule-for-molecule basis. Because it is very stable and stays in the air for thousands of years, even small amounts contribute significantly to long-term warming.Answer key for these questions
| Q | Correct answer |
|---|---|
| 211 | (a) Below 2 degrees, ideally 1.5 degrees |
| 212 | (d) Paris Agreement |
| 213 | (c) Building sea walls to protect coasts |
| 214 | (b) UNEP and WMO |
| 215 | (b) I and III only |
| 216 | (a) Balancing emissions with gas removal |
| 217 | (c) Absorption of carbon dioxide by oceans |
| 218 | (a) Achieve the target of Net Zero by 2050 |
| 219 | (d) Trapping of heat by atmospheric gases |
| 220 | (b) Sulfur hexafluoride |
Key facts from Health, Environment and Agriculture
- The RPSC General Science syllabus includes human health and nutrition, environmental change, biodiversity and the agriculture of Rajasthan.
- Health questions pair a deficiency or a programme with its cause or target, for example iron with anaemia.
- Environment questions cover ecosystems, pollutants, laws and treaties, including carbon markets.
- Rajasthan agriculture questions deal with dryland farming, crops of the arid zones and the State’s agro-climatic zones.
- Science and technology, policies and defence are on the Science and Technology page.
Frequently asked questions
How many RAS Prelims practice MCQs are there on Health, Environment and Agriculture?
This page has 662 practice MCQs on Health, Environment and Agriculture. Each has the correct answer, and most have an explanation.
Which chapters does this set cover?
Four chapters: human health, food, nutrition and public health programmes; environmental and ecological changes and their impact assessment; biodiversity, conservation of natural resources and sustainable development; and agriculture, horticulture, forestry and animal husbandry in Rajasthan.
Are health, environment and agriculture part of the RAS Prelims syllabus?
Yes. The General Knowledge and General Science paper includes human health, nutrition, environment, biodiversity and the agriculture sector of Rajasthan, so these topics can be asked every year.
How can I revise this part of the syllabus?
Make short lists of deficiency diseases, pollutants, laws and treaties, and Rajasthan crops and zones. Attempt each chapter, read the explanations of the misses and revisit the lists after a few days.