Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan: RAS Prelims MCQs
164 RAS Prelims MCQs on agriculture, horticulture, forestry and animal husbandry in Rajasthan deal with farming in an arid and semi-arid State. Moisture conservation, agro-climatic zones, dry farming, drought-resistant crops, early maturing varieties and the causes of desertification are asked as facts, matches and statements, and the explanations show why each practice suits the desert environment.
Practice questions based on the RPSC RAS Prelims syllabus. They follow the exam pattern but are not past-paper questions.
Showing 1–10 of 164 questions
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q1. 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.
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.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q2. 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.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q3. Identify the incorrect statement regarding the agricultural geography of Rajasthan.
Explanation
Rajasthan is a geographically diverse state and is divided into ten distinct agro-climatic zones based on rainfall, temperature, and soil characteristics. Claiming that the entire state falls under a single zone is factually incorrect. The Aravalli range acts as a climatic divide, significantly influencing rainfall distribution. Consequently, different regions exhibit varied agricultural patterns ranging from arid to humid.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q4. In the context of arid agriculture in Rajasthan, which of the following is an effective moisture conservation technique?
Explanation
Arid agriculture in Rajasthan relies on effective moisture conservation techniques to combat high evaporation and low rainfall. Contour bunding involves creating barriers along slope lines to reduce runoff and enhance water infiltration. Mulching covers the soil surface with organic or inorganic materials to retain moisture. These practices are essential for sustaining crops in regions where water availability is limited.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q5. Which agro-climatic zone of Rajasthan encompasses the districts of Jaisalmer, Barmer, and Bikaner?
Explanation
The districts of Jaisalmer, Bikaner, and Churu are part of the Hyper Arid Partial Irrigated Zone, also known as Zone One-C. This region experiences extremely low rainfall and high temperatures, representing the core of the Thar Desert. While irrigation facilities have expanded through the Indira Gandhi Canal, large areas remain hyper-arid. This classification highlights the specific climatic challenges.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q6. The following question consists of two statements. Read both statements and select the correct option: Statement I: Salinity and alkalinity are common problems in the soils of arid regions. Statement II: High evaporation rates draw dissolved salts to the soil surface.
Explanation
Salinity and alkalinity are prevalent soil issues in arid regions like western Rajasthan. High evaporation rates exceed precipitation, causing a capillary action that draws dissolved salts from deeper layers to the soil surface. Over time, these salts accumulate, making the soil less productive for standard crops. Understanding this geochemical process is vital for implementing effective soil reclamation and management.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q7. The practice of cultivating crops in regions receiving less than 750 mm of annual rainfall without supplementary irrigation is strictly defined as:
Explanation
Dry farming is specifically defined as the cultivation of crops in regions where the annual rainfall is less than seven hundred and fifty millimeters. In this system, agricultural production occurs without any supplementary irrigation, relying solely on stored soil moisture. This practice is common in the aridest parts of Rajasthan. It differs from dryland farming, which covers higher rainfall.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q8. Identify the odd one out among the following challenges faced by farmers in the arid plains of Rajasthan.
Explanation
Farmers in the arid plains of Rajasthan face challenges like frequent droughts, extreme temperature variations, and low soil organic carbon. However, the siltation of perennial rivers is not a characteristic challenge because the region largely lacks perennial river systems. Most water bodies in these arid districts are seasonal or ephemeral. Therefore, river siltation does not represent a primary concern.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q9. The phenomenon of desertification in Rajasthan is primarily accelerated by which of the following anthropogenic factors?
Explanation
Desertification in Rajasthan is significantly accelerated by anthropogenic factors such as overgrazing by livestock. When the number of animals exceeds the carrying capacity of the land, the protective vegetative cover is destroyed. This exposes the soil to wind erosion and reduces its water-holding capacity. Other factors like deforestation and unscientific land use further exacerbate the degradation of ecosystems.
RAS PrelimsHealth, Environment and Agriculture · Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Q10. Which of the following drought-resistant crop varieties is commonly cultivated in the arid regions of Rajasthan for grain and fodder?
Explanation
Pearl Millet, locally known as Bajra, is the most common drought-resistant crop cultivated in the arid regions of Rajasthan. It is well-adapted to sandy soils and requires minimal water to reach maturity. This crop provides essential food grains for human consumption and valuable fodder for livestock. Its resilience makes it a staple for farmers residing in desert districts.
Answer key for these questions
Q
Correct answer
1
(a) Both A and R are true and R is the correct explanation of A.
2
(c) High reliance on groundwater resulting in rapid aquifer depletion.
3
(d) The entire state of Rajasthan falls under a single agro-climatic zone.
4
(c) Contour bunding and mulching
5
(b) Hyper Arid Partial Irrigated Zone
6
(a) Both Statement I and Statement II are correct.
7
(a) Dry farming
8
(c) Siltation of perennial rivers
9
(a) Overgrazing by livestock
10
(d) Pearl Millet (Bajra)
Key facts from Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan
Contour bunding and mulching are effective moisture conservation methods in arid agriculture.
Jaisalmer, Barmer and Bikaner fall in the Hyper Arid Partial Irrigated Zone.
Dry farming is the practice of growing crops in regions with less than 750 mm of annual rainfall without irrigation.
Bajra (pearl millet) is a common drought-resistant crop of the arid region; moth bean is drought-tolerant and forms a dense soil cover.
Raj 3077 is a drought-resistant wheat variety suited to low-water areas.
Early maturing varieties help crops escape terminal drought; overgrazing by livestock accelerates desertification.
Frequently asked questions
How many RAS Prelims practice MCQs are there on Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan?
This page has 164 practice MCQs on Agriculture, Horticulture, Forestry and Animal Husbandry in Rajasthan (Health, Environment and Agriculture). Each has the correct answer, and most have an explanation.
What is dry farming?
The practice of growing crops in regions with less than 750 mm of annual rainfall without irrigation, by conserving soil moisture through methods such as mulching, bunding and early sowing.
Why is moth bean grown widely in Rajasthan?
Because it is drought-tolerant and forms a dense soil cover that protects the soil from erosion. It also fixes nitrogen, so it suits the poor sandy soils of the arid west.
Why are early maturing varieties important?
They complete their growth before the dry spell at the end of the season, so the crop escapes terminal drought. This is a key strategy for rain-fed farming in Rajasthan.
