Explanation

"They" is the correct subject pronoun referring to "the children", who are performing the action (crossing the road).

"Them" is an object pronoun.

Explanation

A pie graph (or pie chart) is divided into sectors, where each sector represents a part of the whole.

The size of each sector corresponds to the proportion of the category it represents.

Explanation

Explanation

Bandwidth refers to the amount of data transmitted per second.

It is measured in bits per second (bps).

It indicates the speed or capacity of a network connection.

Explanation

The speed of sound in steel at 20°C is approximately 5100–5200 m/s, with 5130 m/s being a widely accepted value.

Sound travels faster in solids like steel due to their high density and elasticity compared to gases and liquids.

Explanation

حضور صلی اللہ علیہ وسلم نے 9 ذی الحجہ کو عرفات کے مقام پر قیام فرمایا، جو حج کا اہم ترین دن ہے۔

اس دن آپ صلی اللہ علیہ وسلم نے قصویٰ اونٹنی پر سوار ہو کر حجۃ الوداع کا خطبہ دیا۔

Explanation

اسکاؤٹ تنظیم کا مقصد نوجوانوں کی کردار سازی، نظم و ضبط اور خود اعتمادی پیدا کرنا تھا۔

یہ تنظیم نوجوانوں کو جسمانی، اخلاقی اور معاشرتی طور پر مضبوط اور کارآمد شہری بناتی ہے۔

Explanation

• The critical angle is the angle of incidence at which the angle of refraction is 90°, and beyond which total internal reflection occurs.
• This concept is crucial in understanding optical phenomena like fiber optics and prisms.

Explanation

Passage

Last night I was reading a book about the scientific inventions and discoveries made by the scientists in the last one hundred years. These inventions include radio, TV, telephone, electricity, jet engines, rockets, aeroplanes, tanks, atom bomb, computer and the conkest of the moon. I wondered what the world will look like before one hundred years. With these thoughts in mind, I went to sleep and found myself in the world of dreams.

I enters a new world. It was full of shining stars and planets. Their was also many spaceships. They were travelling from one planet for another, and from star to star. They had artificial of cylinders oxygen. I happened to visit Jupiter, the Mars, the Saturn, Uranus and the Pluto. Many human beings were settled on these planets. They had been living on those planets with the help of many electronic machines.

1. These inventions include radio, TV, telephone, electricity, jet engines, rockets, aeroplanes, tanks, atom bomb, computer and the _____ of the moon.

Conquest

2. I wondered what the world will look like _____ one hundred years.

After

3. I _____ a new world.

Entered

4. _____ also many spaceships.

There were

5. They were traveling from one planet _____ another, and from star to star.

To

6. The correct form of the sentence: They had artificial of cylinders oxygen is _____?

They had cylinders of artificial oxygen.

Explanation

"Those" refers to "the streets (of Lahore)" mentioned earlier.

It is a demonstrative pronoun used to point out specific things.