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 531–540 of 662 questions
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RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q531. Arrange the following steps of setting up and operating a typical polyhouse in the correct sequence: A. Erection of the GI pipe framework and cladding with UV-stabilized film B. Site selection and land leveling C. Installation of drip irrigation and fogging systems D. Bed preparation, fumigation, and planting Which of the following represents the correct sequence?
Explanation
Setting up a polyhouse begins with proper site selection and land leveling to ensure structural stability and drainage. Next, the galvanized iron pipe framework is erected and covered with UV- stabilized plastic film. Following construction, irrigation and cooling systems like foggers are installed. Finally, the internal beds are prepared, fumigated to kill pathogens, and the crops are planted.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q532. Identify the correct statement regarding shade net houses.
Explanation
Shade net houses are specialized structures designed to protect plants by reducing the intensity of direct sunlight. In Rajasthan, where solar radiation can be extremely high, these houses help in lowering the temperature and preventing heat stress. They are often used for nursery raising and the cultivation of leafy vegetables or ornamental plants. They allow natural air circulation through mesh.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q533. Which technology is integrated into naturally ventilated polyhouses in Rajasthan to manage extremely high summer temperatures?
Explanation
Fan and pad cooling systems are frequently integrated into polyhouses in Rajasthan to manage extreme summer heat. This system works on the principle of evaporative cooling. Exhaust fans pull air through wet cellulose pads, significantly lowering the temperature of the air entering the structure. This technology is essential for maintaining an optimal growing environment when external temperatures exceed the survival threshold.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q534. Soil solarization in protected cultivation is an eco-friendly method used primarily for:
Explanation
Soil solarization is an eco-friendly technique used in protected cultivation to disinfect the soil. Before planting, the moist soil is covered with transparent plastic sheets during the peak summer months. The trapped solar energy raises the soil temperature to levels that kill harmful pathogens, fungi, and weed seeds. This reduces the need for chemical fumigants and helps healthy growth.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q535. The National Horticulture Mission (NHM) provides subsidies for protected cultivation. This intervention aims to:
Explanation
The National Horticulture Mission provides financial subsidies to encourage farmers to adopt protected cultivation techniques. This initiative aims to improve the productivity and quality of fruits, vegetables, and flowers. By moving away from traditional open-field methods, farmers can achieve higher yields per unit of land. These government interventions are crucial for modernizing Rajasthan’s agricultural sector and increasing farmer income.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q536. Horticulture in Rajasthan focuses on the cultivation of:
Explanation
Horticulture is a specialized branch of agriculture that focuses on the cultivation of a variety of high-value crops. In Rajasthan, this includes fruits like kinnow and pomegranate, diverse vegetables, various flowers, spices, and aromatic plants. These crops are essential for diversifying the agricultural economy and providing nutritional security. Horticulture typically involves more intensive management practices compared to cereal crops.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q537. Which district in Rajasthan is famously known as the "Orange City" or "Nagpur of Rajasthan" due to its extensive Mandarin (Kinnow/Orange) cultivation?
Explanation
Jhalawar district is famously known as the "Nagpur of Rajasthan" because of its extensive mandarin orange cultivation. The region’s climate and soil are highly suitable for citrus fruits, making it the leading producer in the state. The widespread orchards contribute significantly to the local economy and have placed Jhalawar on the national map for fruit production.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q538. Kinnow, a high-yielding mandarin hybrid, is extensively grown in which agro-climatic zone of Rajasthan?
Explanation
Kinnow, a hybrid mandarin, is extensively grown in the Irrigated North Western Plain, particularly in the Sriganganagar and Hanumangarh districts. The availability of canal irrigation from the Indira Gandhi Canal project has transformed this arid region into a major fruit-producing hub.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q539. Identify the incorrect pair regarding fruit cultivation hubs in Rajasthan:
Explanation
In the horticultural geography of Rajasthan, mangoes are primarily grown in more humid and sub-humid southern districts like Banswara and Udaipur. Jaisalmer is a hyper-arid district where mangoes are not traditionally cultivated on a commercial scale due to extreme heat and lack of water. Other pairs like Guava in Sawai Madhopur and Pomegranate in Barmer are correct representations.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q540. Consider the following statements about floriculture in Rajasthan: I. Pushkar (Ajmer) is a major center for rose cultivation. II. Marigold is cultivated extensively due to its hardiness and demand in local markets. III. Floriculture does not require micro-irrigation as it thrives on flood irrigation. Which of the above statement(s) is/are correct?
Explanation
Pushkar in Ajmer is a world-renowned center for rose cultivation, producing flowers for local use and export. Marigold is another popular flower in Rajasthan due to its hardy nature and steady market demand. However, floriculture greatly benefits from micro-irrigation systems to save water and improve quality, making the third statement incorrect. Thus, only the first two statements are correct.
Answer key for these questions
Q
Correct answer
531
(a) B, A, C, D
532
(d) Reducing sunlight intensity and heat stress on plants.
533
(a) Fan and pad cooling systems
534
(b) Using solar heat to disinfect soil from pathogens and weeds.
535
(b) Enhance the productivity and quality of horticultural crops per unit area.
536
(c) Fruits, vegetables, flowers, spices, and aromatic plants
537
(d) Jhalawar
538
(c) Irrigated North Western Plain (Sriganganagar)
539
(b) Mango - Jaisalmer
540
(a) I and II only
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.
