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A ball is thrown upwards. It returns to ground describing a parabolic path. Which of the following remains
constant? #physics #jee #neet
11 months ago | [YT] | 4
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In the Linnaean system, each animal species is placed in a taxonomic hierarchy with seven levels. The level in the middle (4th) is order. It contains: [NSEB 2013]
#biology #olympiad #NSEB #BiologyOlympiad
1 year ago | [YT] | 0
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Considering levels of organizational hierarchy in biological world, the correct relationship is: : [NSEB 2012]
1 year ago | [YT] | 0
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The amount of sugar (C12H22O11) required to prepare 2L of its 0.1M aqueous solution is:
#chemistry #NEET #JEE
1 year ago | [YT] | 1
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During mating season, the belly of three-spined stickleback fish becomes red. The male sticklebacks show typical aggressive behaviour when they see a red-bellied male stickleback, or any red-coloured object in the vicinity. Identify another example of this type of behaviour from the following:
#NSEB #Biology #olympiad
1 year ago | [YT] | 3
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A turtle draws its head back into its shell when its shell is touched. After being touched repeatedly,
however, the turtle no longer withdraws its head. This behaviour is an example of :
#NSEB #Biology #olympiad
1 year ago | [YT] | 2
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[JEEMAIN PYQ] Benzene and toluene form nearly ideal solutions. At 20∘C , the vapour pressure of benzene is 75 torr and that of toluene is 22 torr. The partial vapour pressure of benzene at 20∘ for a solution containing 78g of benzene and 46g of toluene in torr is
1 year ago | [YT] | 0
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[JEEMAIN PYQ] Two solutions of a substance (non-electrolyte) are mixed in the following manner , 480 mL of 1.5 M [first solution ] + 520 mL of 1.2 M [second solution ] . What is the molarity of the final mixture ?
1 year ago | [YT] | 1
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[Mineral Nutrition] Which micronutrient is required for splitting of water molecule during photosynthesis?
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1 year ago | [YT] | 1
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CosmoAcademics
[Transport in Plants] Given below are two statements :
Statement I: The forces generated by transpiration can lift a xylem-sized column of water over 130 meters height.
Statement
II: Transpiration cools leaf surfaces sometimes 10 to 15 degrees, by evaporative cooling. In the light of the above statements, choose the most appropriate answer from the options given below:
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1 year ago | [YT] | 15
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