Explanation

استاد کے ساتھ سیکھنے کا چھولی دامن کا ساتھ ہے کیونکہ تعلیم اور سیکھنے کا عمل استاد سے جڑا ہوتا ہے۔

استاد کی رہنمائی میں طالب علم اپنی صلاحیتوں کو بہتر بناتا ہے، جو سیکھنے کا اہم حصہ ہے۔

Explanation

He asked me where he would find the book I had recommended.

In passive voice, the reported speech changes the verb tense appropriately, and the indirect speech follows the past tense structure.

"Will" changes to "would" in indirect speech, and "have recommended" changes to "had recommended."

Explanation

"To" completes the phrase "to the best of his ability".

It means he worked with his maximum effort.

Explanation

Wearing away refers to the gradual removal of material.

Erosion commonly occurs by natural forces like water, wind, or ice, especially in coastal areas.

Wearing away means دور پہننا

Erosion means کٹاؤ

Explanation

Lizards and snakes belong to the order Squamata, which is characterized by scaled reptiles.

This order includes both suborders: Lacertilia (lizards) and Serpentes (snakes).

Explanation

o-Nitrophenol is more acidic due to the strong electron-withdrawing effect of the nitro group and possible intramolecular hydrogen bonding, which stabilizes the conjugate base.

Though both have -NO₂, the ortho position enhances acidity more than the para position.

Explanation

Sabin vaccine is the oral polio vaccine (OPV) developed by Albert Sabin.

It contains live attenuated poliovirus.

It helps in building immunity against poliomyelitis.

Explanation

Dinoflagellates do have cellulose plates, but not impregnated with calcium — that’s a feature of some other protists, not typical dinoflagellates.

They are mostly unicellular and can form blooms (like red tides).

Explanation

1,2-Butadiene contains cumulene structure with adjacent double bonds (C=C=C), leading to sp-hybridization at the central carbon.

The terminal carbon atoms are sp²-hybridized, while the central carbon is sp-hybridized.

Explanation

Hormones are chemical messengers that travel through the bloodstream to target organs and tissues.

This is a key function of the circulatory system, helping regulate various bodily functions.