IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Contour bunding is a method of soil conservation used in 2936 05b5cc68be4d2b4197774c37b
5b5cc68be4d2b4197774c37b- 1Scrublands, liable to spread of weed growthfalse
- 2Hilly and Slopy or mountain areastrue
- 3Low flat plains, close to stream courses, liable to floodingfalse
- 4Desert margins, liable to strong wind actionfalse
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उत्तर : 2. "Hilly and Slopy or mountain areas"
व्याख्या :
Answer: B) Hilly and Slopy or mountain areas Explanation: Contour bunding is a proven sustainable land management practice for mountainous areas, marginal, sloping, and hilly land where the soil productivity is very low. It is widely adopted by the ethnic minorities of Nepal who practice the shifting cultivation system of farming.
प्र: The shorter i am, the bigger i am. What am I? 1705 05b5cc68be4d2b4197774c379
5b5cc68be4d2b4197774c379- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
A Temper.
प्र: What organelle allows some protists to detect light? 1457 05b5cc68be4d2b4197774c37a
5b5cc68be4d2b4197774c37a- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
An organelle called Eyespot allows some protists to detect light. It allows the cells to sense light direction and intensity and respond to it by swimming either towards the light (positive phototaxis) or away from the light (negative phototaxis). Eyespot is a photoreceptive organelle found in the flagellate or (motile) cells of green algae and other unicellular photosynthetic organisms such as euglenids. Eyespot-mediated light perception helps the cells in finding an environment with optimal light conditions for photosynthesis. Eyespots are the simplest and most common "eyes" found in nature, composed of photoreceptors and areas of bright orange-red pigment granules.
प्र: Which of the following is the primary purpose of the DSM? 4026 05b5cc68be4d2b4197774c36f
5b5cc68be4d2b4197774c36f- 1Understanding the causes of mental disordersfalse
- 2Placement of mental disorders in appropriate cultural contextfalse
- 3Diagnosis of mental disorderstrue
- 4Selection of appropriate psychological therapies for mental disordersfalse
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उत्तर : 3. "Diagnosis of mental disorders"
व्याख्या :
Answer: C) Diagnosis of mental disorders Explanation: The DSM is the Diagnostic and Statistical Manual of Mental Disorders; it is currently in its fifth edition. The DSM is published by the APA, American Psychiatric Association. It is a crucial resource in the fields of psychology and psychiatry.
प्र: The 1911 Chinese revolution ended the rule of the 3097 05b5cc68be4d2b4197774c365
5b5cc68be4d2b4197774c365- 1Ming dynastyfalse
- 2Mongolians dynastyfalse
- 3Song dynastyfalse
- 4Manchus dynastytrue
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उत्तर : 4. "Manchus dynasty"
व्याख्या :
Answer: D) Manchus dynasty Explanation: It was the Qing Dynasty, who was a Manchu Dynasty whose rule ended in 1911 Chinese revolution.
प्र: What is the place value of 6 in 64? 2508 05b5cc68be4d2b4197774c36a
5b5cc68be4d2b4197774c36a- 16false
- 260true
- 364false
- 410false
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उत्तर : 2. "60"
व्याख्या :
Answer: B) 60 Explanation: We know that, ● Each digit has a fixed position called its place. ● Each digit has a value depending on its place called the place value of the digit. ● The face value of a digit for any place in the given number is the value of the digit itself ● Place value of a digit = (face value of the digit) × (value of the place). Hence, the place value of 6 in 64 = 6 x 10 = 60.
प्र: Which best describes the practice of outsourcing? 2761 05b5cc68be4d2b4197774c35f
5b5cc68be4d2b4197774c35f- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
In business, outsourcing is an agreement in which one company contracts its own internal activity to different company. It involves the contracting out of a business process (e.g. payroll processing, claims processing) and operational, and/or non-core functions (e.g. manufacturing, facility management, call center support) to another party (see also business process outsourcing). A company moves some of its jobs to another country and employing workers in other countries to save on labor costs best describes the practice of outsourcing.
प्र: Which of the following foods does not support bacterial growth? 42074 05b5cc68be4d2b4197774c360
5b5cc68be4d2b4197774c360- 1Raw carrotstrue
- 2Sauted onionsfalse
- 3Refried beansfalse
- 4Cooked ricefalse
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उत्तर : 1. "Raw carrots"
व्याख्या :
Answer: A) Raw carrots Explanation: Cooked food create an enabling environment for bacteria to grow because of their moisture content and because of the normal temperature of the food. Raw food does not offer suitable conditions for bacteria growth. Hence, raw carrots does not support bacterial growth.

