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 581–590 of 662 questions
Browse Health, Environment and Agriculture chapters
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q581. Match the items in List I with those in List II and select the correct answer using the codes given below:
Forest Type in Rajasthan
Dominant Tree Species/Region
A. Tropical Dry Deciduous Forest
i. Khejri, Babool, Phog (Western Arid Region)
B. Tropical Thorn Forest
ii. Teak, Tendu (Banswara, Dungarpur)
C. Sub-tropical Broad-leaved Hill Forest
iii. Dhokda (Anogeissus pendula) (Aravalli Region)
D. Dry Teak Forest
iv. Mango, Jamun, Gurjan (Mount Abu)
Explanation
Rajasthan’s forests are categorized into distinct types based on climate and species. Tropical Dry Deciduous forests are dominated by Dhokda and are common in the Aravalli region. Tropical Thorn forests, featuring Khejri and Babool, are found in the western arid zones. The unique Sub-tropical Broad-leaved Hill forests are restricted to Mount Abu, while Dry Teak forests are prevalent southernly.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q582. Which tree species constitutes the maximum forest cover in Rajasthan, dominating the dry deciduous forests of the Aravalli ranges?
Explanation
Dhokda is the most widespread tree species in Rajasthan, constituting a significant portion of the state’s forest cover. It is the dominant species in the dry deciduous forests that cover the Aravalli hills. Dhokda is exceptionally hardy and can grow on rocky and hilly terrain with minimal soil and water. Its wood is traditionally valued for its strength and ecosystem role.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q583. Legally, forests in Rajasthan are classified into three categories. Which of the following is NOT one of these legal categories?
Explanation
Legally, the forests in Rajasthan are classified into three distinct categories: Reserved Forests, Protected Forests, and Unclassed Forests. These classifications determine the level of protection and the degree of human activity allowed within them. Commercial Plantations is not a legal category under this classification system, although plantations may exist within the other categories. Understanding these legal divisions is fundamental.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q584. In which legal category of forests in Rajasthan are all human activities (like grazing and timber collection) strictly prohibited unless specifically permitted?
Explanation
Reserved forests are the most protected category of forests in Rajasthan. In these areas, all human activities, including livestock grazing, timber collection, and entry, are strictly prohibited unless specific permission is granted by the forest department. This high level of protection aims to conserve the natural habitat, biodiversity, and critical water catchments. They represent core areas of forest conservation.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q585. Which district in Rajasthan has the maximum geographical area under forest cover?
Explanation
Udaipur district consistently records the maximum geographical area under forest cover in Rajasthan. The hilly terrain of the Aravallis and relatively higher rainfall in this region support the growth of dense deciduous and teak forests. The extensive forest cover in Udaipur is vital for the state’s ecological balance and provides habitat for diverse wildlife. It stands in sharp contrast westwards.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q586. Which district in Rajasthan records the minimum percentage of forest cover relative to its geographical area?
Explanation
Churu district is known for having the minimum geographical area under forest cover in Rajasthan. Located in the heart of the arid zone, the district faces extreme temperatures and very low rainfall, which naturally limits forest growth. The landscape is dominated by sand dunes and sparse desert vegetation. This highlights the severe ecological constraints faced.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q587. Sub-tropical broad-leaved hill forests, representing a unique micro-climate with species like natural orchids and wild roses, are restricted to which area of Rajasthan?
Explanation
Sub-tropical broad-leaved hill forests are a unique forest type found only in the Mount Abu region of Rajasthan. The high altitude of the Aravalli hills here creates a distinct micro-climate with higher rainfall and lower temperatures compared to the surrounding plains. This allows for the growth of diverse species like mango and natural orchids. These forests represent a biodiversity hotspot.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q588. Identify the incorrect statement regarding the Dry Teak Forests of Rajasthan.
Explanation
Dry Teak forests are found in the southern districts of Rajasthan, where they thrive in moderate rainfall conditions. However, due to the seasonal nature of the rain and lower humidity, the teak trees here do not reach the massive heights seen in tropical rainforests. Therefore, the third statement is incorrect. These forests are managed to prevent damage from ground fires.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q589. The ‘Babul’ (Acacia nilotica) and ‘Khejri’ (Prosopis cineraria) dominate which type of forest in Rajasthan?
Explanation
Babul and Khejri are the dominant tree species of the Tropical Thorn Forest type in Rajasthan. These forests are characteristic of the arid and semi-arid regions where rainfall is low and evaporation rates are high. The trees are typically small, with deep roots and thorny structures to reduce water loss. This forest type is vital for desert stabilization and resources.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q590. The Khejri tree (Prosopis cineraria) is deeply revered in Rajasthan and holds the status of:
Explanation
The Khejri tree is deeply woven into the cultural and ecological fabric of Rajasthan and holds the official status of the State Tree. It is revered for its resilience and ability to provide food, fodder, and fuel even in the harshest desert conditions. Its significance is celebrated through religious traditions and historic conservation movements. The Khejri is a symbol.
Answer key for these questions
Q
Correct answer
581
(c) A-iii, B-i, C-iv, D-ii
582
(d) Dhok or Dhokda (Anogeissus pendula)
583
(a) Commercial Plantations
584
(c) Reserved Forests
585
(a) Udaipur
586
(d) Churu
587
(b) Mount Abu region
588
(c) Teak trees grow to heights comparable to tropical rainforests.
589
(d) Tropical Thorn Forest
590
(a) State Tree
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.
