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is
"Mathematics" is treated as a singular subject even though it ends in "s".
for
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Kerala and Tamil Nadu
<ul> <li><b>Correct answer: Kerala and Tamil Nadu</b></li> <li>The <b>Cardamom Hills</b> are a part of the Western Ghats running along the border of <b>Kerala and Tamil Nadu</b>, especially in Idukki and Palakkad regions.</li> <li><b>Why others are wrong:</b> <ul> <li>A) Karnataka and Tamil Nadu – not the main border for Cardamom Hills.</li> <li>B) Karnataka and Kerala – stretches of Cardamom Hills lie near Tamil Nadu border, not Karnataka here.</li> <li>D) Tamil Nadu and Andhra Pradesh – no, these hills are coastal-ward in Kerala–TN belt.</li> </ul> <li>Exam fact: They are part of the <b>Western Ghats</b>, a UNESCO-listed biodiversity hotspot important for spice cultivation.</li> </ul>
Sutlej
<div class="ai-exp-block"> <b>Explanation:</b> <p>The Bhakra dam is built on the Sutlej river, in northern India. It is a major gravity dam and forms the Bhakra-Nangal Project, supplying water and hydroelectric power to several states. The river Sutlej originates in Tibet and flows through Himachal Pradesh into Punjab, where the dam helps regulate water for irrigation and electricity. The other options, Ganga and Yamuna, are different rivers and are not the site of this dam. "None of these" would be incorrect since Sutlej is the correct river.</p> </div> <div class="ai-did-block"> <b>? Did You Know?</b><br> <p>Bhakra Dam is often called the "New Temple of Resurgent India" due to its role in irrigation and power generation.</p> </div> <div class="ai-remember-block"> <b>? Remember:</b> <p>Bhakra dam is on the Sutlej river.</p> </div>
carbon, hydrogen, oxygen
<b>Correct option: B</b> <ul> <li><b>Key concept:</b> Alcohols contain carbon, hydrogen, and oxygen in the hydroxyl (–OH) group. For example, ethanol has formula C2H5OH.</li> <li><b>Why B is correct:</b> It lists C, H, O exactly as in common alcohols.</li> <li><b>Why others are incorrect:</b> A and C include nitrogen; D includes chlorine—these are not typical elements in simple alcohols.</li> <li><b>Exam tip:</b> Remember the general formula pattern for simple alcohols: CxHyOH.</li> </ul>
in
The phrase take pride in means to feel satisfaction or pleasure about something you have or have achieved.
Structure: take pride in + noun/pronoun/gerund
on
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Gumti and Rowa
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It is 180° Meridian from Greenwich
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Graphite
<b>Correct option: A</b> <ul> <li><b>Graphite</b> is used in pencils because it has a layered, soft structure that can leave marks on paper while being easy to break into a fine line.</li> <li>Key concept: <b>carbon allotropes</b> differ in properties; graphite is lubricating, opaque, and conducts electricity, making it ideal for writing.</li> <li>If a formula/idea is needed: graphite's structure allows layers to slide, forming a thin graphite layer on paper.</li> <li>Exam tip: remember the common misconception about "pencil lead" vs graphite.</li> <li>Why others are incorrect: <ul> <li>Silicon is mainly a semiconductor.</li> <li>Charcoal is porous and not durable for writing cores.</li> <li>Phosphorus is highly reactive and not suitable for pencils.</li> </ul> </li> </ul>
