Explanation

The phrase "at present" indicates an action happening right now, so present continuous tense is needed.

"Is reading" correctly shows the ongoing action with the subject 'She'.

Explanation

Meissner’s corpuscles are specialized mechanoreceptors that detect light touch and vibrations in the skin.

They are most abundant in fingertips, lips, and palms.

Explanation

Adipic acid has six carbon atoms with carboxylic acid groups at both ends — hence the name hexane-1,6-dioic acid.

It is a dicarboxylic acid.

It is widely used in the production of nylon.

Explanation

An ulcer is a gut disorder where the inner lining of the stomach or intestine becomes sore or eroded.

It often causes pain, bleeding, and discomfort, especially in the stomach or small intestine.

Explanation

DNA contains deoxyribose sugar, not ribose.

Ribose sugar is found in RNA, not in DNA.

Explanation

A function is concave down on an interval if its second derivative is negative over that interval.

Graphically, this means the curve bends downward like an upside-down bowl.

Explanation

عرش کا مطلب ہے اونچا مقام یا آسمانی تخت، جب کہ فرش نیچے کی سطح کو کہتے ہیں۔

اس لیے عرش اور فرش ایک دوسرے کے ضد (متضاد) ہیں۔

Explanation

The do-while loop is useful when the loop must run at least once, even if the condition is false initially.

It's suitable when the number of iterations is not known in advance and depends on runtime conditions.

Explanation

In the Demonstration Method, the teacher performs and explains practically.

It helps students see the process in action for better understanding.

Explanation

The line "When pansies lift their eyes to mine" gives human qualities (lifting eyes) to flowers (pansies).

This is an example of personification, where non-human things are described as if they were human.