IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: Which process removes carbon dioxide from the atmosphere? 1298 0

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    Combustion
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    Photosynthesis
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    Respiration
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    All of the above
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उत्तर : 2. "Photosynthesis"
व्याख्या :

Answer: B) Photosynthesis Explanation: Photosynthesis process removes carbon dioxide from the atmosphere. Green plants remove carbon dioxide from the atmosphere by photosynthesis.  The level of carbon dioxide in the atmosphere is maintained by several processes, including photosynthesis, respiration and combustion.

प्र: What does the legislative branch do? 989 0

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उत्तर :
व्याख्या :

In federal and state government, the legislative branch's primary function is to make laws.

प्र: What event prompted the formation of the first continental congress? 1652 0

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    The Boston Massacre
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    The battles of Lexington and Concord
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    The Boston Tea Party
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    None of the above
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उत्तर : 3. "The Boston Tea Party"
व्याख्या :

Answer: C) The Boston Tea Party Explanation: Before the shots were fired at Lexington and Concord, the colonies made an attempt to settle the concerns and frustrations raised with the Intolerable Acts through debate and discussion. Thus, the First Continental Congress was called to order on September 5th, 1774. The First Continental Congress was a meeting of delegates from twelve of the Thirteen Colonies early in the American Revolution. It was called in response to the Intolerable Acts passed by the British Parliament, which the British referred to as the Coercive Acts, with which the British intended to punish Massachusetts for the Boston Tea Party.

प्र: A low trough is indicative of 1179 0

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    the start of a depression
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    the end of a recession
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    a serious depression
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    a growing recession
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उत्तर : 4. "a growing recession"
व्याख्या :

Answer: D) a growing recession Explanation: A low trough is indicative of "a growing recession" since a trough indicates a general change in the business cycle, which can have varying degrees of importance. A recession could be an important decline in economic activity that goes on for quite many months.

प्र: Which has the lowest albedo? 1569 0

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    dark surfaces
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    light surfaces
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    Both A & B
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    None of the above
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उत्तर : 1. "dark surfaces"
व्याख्या :

Answer: A) dark surfaces Explanation: Albedo refers to a material's ability to reflect sunlight. Since 30% of the sun's energy is reflected by the entire earth, the earth has an average albedo of 0.30. Generally, dark surfaces have a low albedo and light surfaces have a high albedo.

प्र: The age of Sohail, Afzal and Bilal are 17,16 and 12 respectively. If the age of Aslam also included the average of the ages is increased by 5. What is the age of Aslam? 3014 0

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    32
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    33
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    34
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    35
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उत्तर : 4. "35"
व्याख्या :

Answer: D) 35 Explanation: Given S = 17 yrs A = 16 yrs B = 12 yrs Average = 17 + 16 + 12/3 = 15 yrs Given if Aslam added to them, their average increases by 5 => Average of 4 members = 20 Let the age of Aslam be 'x' Then,  17 + 16 + 12 + x /4 = 20 => x = 80 - 45 => x = 35.    Hence, the age of Aslam is 35 yrs.

प्र: Anti lock braking systems can significantly 15079 0

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    Improve your breaking stability
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    Impede your break instability
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    Impede your breaking power
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  • 4
    Improve your breaking power
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उत्तर : 1. "Improve your breaking stability"
व्याख्या :

Answer: A) Improve your breaking stability Explanation: An anti-lock braking system (ABS) is a safety anti-skid braking system used on aircraft and on land vehicles , such as cars, motorcycles, trucks and buses.   ABS is only on the front wheels and it can improve your ability and the stability of your car by keeping the front wheels from locking under severe braking it will allow the wheels to continue to roll so the car can stop straight and stop as safe and as soon as possible

प्र: What bet can never be won? 6420 0

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उत्तर :
व्याख्या :

ALPHABET is the bet can never be won.

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