Explanation

LiFi (Light Fidelity) uses light waves, typically from LED lights, to transmit data at high speeds.

It offers faster data transfer rates compared to traditional Wi-Fi due to the high frequency of light waves.

Explanation

Aestivation is a state of inactivity or dormancy that animals enter during hot or dry seasons to conserve energy.

Hibernation, in contrast, occurs during winter when animals become inactive to survive cold temperatures.

Explanation

Polythene bags are synthetic plastics that do not decompose naturally, taking hundreds of years to break down.

Unlike organic materials like feathers, paper, and wood, polythene bags contribute to environmental pollution.

Explanation

یہ آیت سورۃ الشعراء (26:214) میں آئی ہے، جس میں اللہ تعالیٰ نے حضرت محمد صلی اللہ علیہ وسلم کو اپنے قریبی خاندان کو آگاہ کرنے کا حکم دیا۔

یہ آیت اس بات کی طرف اشارہ کرتی ہے کہ آپ صلی اللہ علیہ وسلم کو سب سے پہلے اپنے اہل و عیال کو دین کی دعوت دینی چاہیے۔

Explanation

A compound sentence consists of two independent clauses joined by a coordinating conjunction (but in this case).

"I waited for the bus" and "it was late" are both independent clauses, making the sentence compound.

Explanation

Explanation

Explanation

The Kashmir culture is a blend of multiple customs.

This option follows the correct subject + verb + complement sentence structure.

It clearly conveys the idea that Kashmir's culture combines various customs in a grammatically correct way.

Explanation

Given logx (4/9) = 2

This can be rewritten as:

x² = 4/9

Taking the square root of both sides:

x = ±√(4/9)

x = ±2/3

Since the base of a logarithm is typically positive, we consider x = 2/3.

Explanation

Let's solve the equation:

4/5 (x + 7) = 3(2x - 7)

Multiply both sides by 5 to eliminate the fraction:

4(x + 7) = 15(2x - 7)

Expand both sides:

4x + 28 = 30x - 105

Subtract 4x from both sides:

28 = 26x - 105

Add 105 to both sides:

133 = 26x

Divide both sides by 26:

x = 133/26