Practice questions without fighting the page.

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<div class="ai-chip">? Vocabulary Learning</div>
<div class="ai-answer-card"><b>✅ Correct Answer</b><p>The correct antonym is aggravating.</p></div>
<div class="ai-why-card"><b>? Why?</b><p>Alleviating means making suffering less. Aggravating means making it worse, which is the opposite.</p></div>
<div class="ai-rule-card"><b>? Remember</b><p>Aggravate means to make something worse; opposite of alleviate.</p></div>
<div class="ai-example-card"><b>? Example</b><p>The rain aggravated the hardship of the poor people.</p></div>
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"One of" is followed by "plural noun/pronoun" and "singular helping verb"

<div class="ai-exp-block"> <b>Explanation:</b> <p>Duncan Passage is the sea channel that lies between South Andaman Island and Little Andaman Island. It separates the Andaman group (to the east) from the Andaman Sea to the south and west. The other options are incorrect because Minicoy lies far to the southwest, Amindiv (North and South) are different groups in the Union Territory, and Car Nicobar sits farther north of Little Andaman.</p> </div> <div class="ai-did-block"> <b>? Did You Know?</b><br> <p>The Andaman Islands lie to the southeast of the Bay of Bengal and form a part of the Union Territory of Andaman and Nicobar Islands.</p> </div> <div class="ai-remember-block"> <b>? Remember:</b> <p>Duncan Passage = between South Andaman and Little Andaman.</p> </div>

Planning Commission of India changed to NITI Aayog on 1 January 2015.

<b>Answer: A) Poor night vision</b> <ul> <li><b>Key concept:</b> Vitamin A is essential for rhodopsin in retina. Deficiency causes nyctalopia (night blindness).</li> <li><b>Why correct:</b> Lack of Vitamin A impairs vision in low light, leading to poor night vision.</li> <li>

<b>Correct answer: D — At poles</b> <ul> <li>Key concept: Gravity varies with latitude because Earth is an oblate spheroid and rotation adds centrifugal force that reduces effective gravity more at the equator.</li> <li>Reason: At the poles, centrifugal force is minimal and radius is smallest, so the gravitational acceleration (g) is strongest.</li> <li>Formula note (conceptual): Effective gravity g_eff ≈ g − ω^2R cos^2(latitude); maximum where the centrifugal term is smallest (poles).</li> <li>Exam tip: Remember g is largest where rotation has least effect; smallest at equator.</li> <li>Why others are incorrect: Equator and tropics have greater centrifugal reduction; poles do not.</li> </ul>

<div class="ai-exp-block"> <b>Explanation:</b> <p>Use the article that matches the sound that starts the next word. "Hour" starts with a vowel sound (even though it’s written with h), so we use <b>an</b>: “half an hour.” If the next word began with a consonant sound, we would use <b>a</b>.</p> </div> <div class="ai-did-block"> <b>? Did You Know?</b><br> <p>Some words start with a consonant letter but vowel sound (like hour, honor). The correct article is based on the sound, not the spelling.</p> </div> <div class="ai-remember-block"> <b>? Remember:</b> <p>Before a word with a vowel sound → an; before a word with a consonant sound → a.</p> </div>

a step-down transformer the voltage is stepped down, or reduced, and the current is increased.