Q491. Identify the correct pair connecting a traditional practice/system with its region.
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 491–500 of 662 questions
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Q492. A "Carbon Credit" is best defined as:
Explanation
A carbon credit is a key component of national and international emissions trading schemes. It serves as a tradable certificate or permit that represents the right to emit one metric tonne of carbon dioxide or an equivalent amount of another greenhouse gas. This market-based mechanism provides an economic incentive for companies and nations to reduce their overall carbon footprint and emissions.
Q493. Identify the correct statement regarding a "Cap and Trade" mechanism.
Explanation
In a cap and trade mechanism a limit is set on emissions and the surplus allowances can be traded.
Q494. Identify the incorrect statement comparing Carbon Tax and Emissions Trading.
Explanation
A carbon tax fixes a price without guaranteeing a limit, and cap and trade fixes the limit while the price varies. Under emissions trading, companies are allowed to buy credits, so A is incorrect.
Q495. In carbon offset projects, the principle of "Additionality" means:
Explanation
Additionality means that the reductions must be real and would not have happened without the revenue from carbon credits.
Q496. Read the following statements and select the correct option:
Statement I: The Clean Development Mechanism (CDM) under the Kyoto Protocol allowed developed countries to invest in emission-reduction projects in developing countries to earn carbon credits.
Statement II: Developing countries like India were not eligible to participate in or benefit from CDM projects.
Statement I: The Clean Development Mechanism (CDM) under the Kyoto Protocol allowed developed countries to invest in emission-reduction projects in developing countries to earn carbon credits.
Statement II: Developing countries like India were not eligible to participate in or benefit from CDM projects.
Explanation
The Clean Development Mechanism allowed developed countries to invest in emission-reduction projects in developing countries and earn credits, so Statement I is correct. India took part in CDM projects, so Statement II is incorrect.
Q497. One carbon credit is universally accepted as equivalent to the reduction, avoidance, or sequestration of:
Explanation
One carbon credit is equal to the reduction, avoidance or sequestration of one metric tonne of carbon dioxide or its equivalent.
Q498. "Carbon Leakage" is a phenomenon that occurs when:
Explanation
Carbon leakage occurs when industries move to countries with weak regulations because of local climate policy, so emissions are shifted and not reduced.
Q499. The following question consists of two statements, one labeled as Assertion (A) and the other as Reason (R). Examine these two statements carefully and select the correct answer from the codes given below:
Assertion (A): Dryland farming is extensively practiced in the western districts of Rajasthan.
Reason (R): The western region receives annual rainfall well below 500 mm and lacks widespread perennial surface water sources.
Assertion (A): Dryland farming is extensively practiced in the western districts of Rajasthan.
Reason (R): The western region receives annual rainfall well below 500 mm and lacks widespread perennial surface water sources.
Explanation
Dryland farming is extensively practiced in western Rajasthan because the region faces severe water scarcity. The annual rainfall in these districts typically remains well below five hundred millimeters. Additionally, the lack of perennial surface water sources makes agricultural activities highly dependent on moisture conservation. These environmental conditions necessitate specific farming techniques to ensure crop survival in arid tracts.
Q500. Which of the following statements best describes the primary challenge of semi-arid agricultural geography in Rajasthan?
Explanation
In the semi-arid agricultural geography of Rajasthan, the primary challenge is the heavy dependence on groundwater for irrigation. Due to limited surface water and erratic rainfall, farmers extract large quantities of water from underground sources. This practice leads to a rapid decline in the water table, causing aquifer depletion. Sustaining agricultural productivity under these conditions requires urgent management.Answer key for these questions
| Q | Correct answer |
|---|---|
| 491 | (d) Surangam (Traditional water management) - Kerala |
| 492 | (a) A tradable permit to emit one tonne of carbon dioxide or equivalent gas. |
| 493 | (b) Setting emission limits and allowing trade of surplus allowances. |
| 494 | (a) Under an emissions trading system, companies are never allowed to buy credits from the market; they must reduce emissions internally to zero. |
| 495 | (c) Reductions must be real and not possible without carbon credit revenue. |
| 496 | (a) Statement I is correct, and Statement II is incorrect. |
| 497 | (c) 1 metric tonne of carbon dioxide or equivalent gases. |
| 498 | (b) Industries relocating to countries with weak regulations due to local policy. |
| 499 | (a) Both A and R are true and R is the correct explanation of A. |
| 500 | (c) High reliance on groundwater resulting in rapid aquifer depletion. |
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.