कृषि, पशु र वन विज्ञान प्रवेश
कृषि, पशु र वन विज्ञान प्रवेश
Agriculture, Veterinary & Forestry Entrance · २,४९३ प्रश्न
२,४९३ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कृषि/वन प्रवेश: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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The ‘Bata Patetar’ palm (Phoenix testudiifolia) is particularly well-suited to the climatic conditions of which Nepali region due to its drought resistance?
सही उत्तर: ख) B. The Mahabharat Hills.
Option B is correct as the Bata Patetar palm thrives in the drier conditions of the Mahabharat hills which have significant rainfall and a warm climate perfect for this species. The Terai (A) receives too much rain, the Himalayas (C) are too cold and dry, and the Kathmandu Valley (D) has inconsistent rainfall.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The term ‘slash and burn’ agriculture, commonly practiced in Nepal's forested areas, primarily refers to:
सही उत्तर: ग) C. The systematic clearing of land by cutting down trees and burning vegetation.
Option B is correct as ‘slash and burn’ (or ‘shifting cultivation’) describes the practice of clearing a patch of forest by cutting down vegetation and then burning it to create fertile land for agriculture. This mimics the natural regeneration cycle of forests. Option A is incorrect because it focuses on timber harvesting; option C misrepresents the process, and option D describes mechanized logging.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Choose the correct phrasal verb: ‘To look up to’ means:
सही उत्तर: ग) to respect
'To look up to' signifies admiration and respect. The other options denote negative sentiments or actions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Fill in the blank: The government is implementing new policies to ____ agricultural productivity.
सही उत्तर: क) increase
The sentence implies a strategy to boost output. 'Increase' aligns with governmental efforts to enhance productivity, while the other options represent actions that would hinder it.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What does the term ‘oxidation’ refer to in chemistry?
सही उत्तर: ख) B. The removal of electrons from a substance.
Oxidation is defined as the loss of electrons by a chemical element or compound, often accompanied by an increase in oxidation state. Option A is correct; B describes reduction; C relates to carbonation and D involves acid-base neutralization.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following processes contributes most to the formation of nitric acid (HNO₃) in atmospheric pollution?
सही उत्तर: ख) B. Combustion of fossil fuels, particularly nitrogen-containing compounds.
The oxidation of nitrogen oxides (NOx) produced during the burning of fossil fuels creates nitric acid. This is a major contributor to acid rain. Option A describes photosynthesis; C refers to sulfur dioxide emissions, and D relates to rock weathering.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the primary purpose of adding lime (CaO) to acidic soils?
सही उत्तर: ख) B. To reduce soil acidity by neutralizing hydrogen ions.
Lime (calcium oxide) neutralizes excess hydrogen ions (H+) in acidic soils, raising the pH and increasing nutrient availability, especially phosphorus. Option A is incorrect as lime doesn’t directly affect phosphate solubility; B accurately describes its primary function; C is a secondary effect; and D focuses on potassium.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The process of converting nitrogen gas into ammonia is called:
सही उत्तर: ग) Nitrogen fixation
Nitrogen fixation refers to the conversion of atmospheric nitrogen (N₂) into a usable form, primarily ammonia (NH₃), often catalyzed by microorganisms. Combustion involves burning; oxidation involves adding oxygen; and decomposition is breaking down existing compounds.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The correct formula for calculating the molar mass of a compound is:
सही उत्तर: ख) (Atomic mass of element 1) + (Atomic mass of element 2)
Molar mass is calculated by summing the atomic masses of all atoms present in the chemical formula. The other options describe different calculations or units. Using the sum of atomic masses gives the molar mass in grams per mole (g/mol).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the primary reason for the color observed when burning magnesium metal?
सही उत्तर: क) Formation of a complex oxide
Burning magnesium produces magnesium oxide (MgO), which has a characteristic bright white color. The other options don’t explain the intense visual effect. The formation of MgO is key to understanding the observed color.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
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