Explanation

Antarctica is the continent covered with the most glaciers, with 91% of the world's glaciers found there.

Antarctica also contains 90% of the world's glacier ice, which is enough to raise sea levels by nearly 60 meters if it were to melt.

Explanation

Let's calculate the total cost of placing an advertisement containing 22 words:

Fixed cost = $3.50

Variable cost = 22 words x $0.25 per word = $5.50

Total cost = Fixed cost + Variable cost = $3.50 + $5.50 = $9.00

So, the total cost of placing an advertisement containing 22 words is $9.00.

Explanation

To password-protect a Microsoft Word document, follow these steps:

1. Go to the "File" menu
2. Click on "Info"
3. Click on "Protect Document"
4. Select "Encrypt with Password"
5. Enter a strong password and confirm it
6. Click "OK"

This will encrypt the document and require a password to open it.

You can also use the "File > Save As" method and select "Password" in the "Save As" dialog box, but the "File > Info > Protect Document" method provides more security options.

Explanation

Direct Speech: He said, 'By God I am not guilty'.

Indirect speech: He swore by God that he was not guilty. 

Present Tense changes into Past Tense.

He is  changes into He was.

Use second form of verb (swore)

Remove inverted commas.

AGM 30.4.23

Explanation

The full form of modem is modulator/demodulator.

It is a tangible device.

The main job of the modem is to help the computer to send and receive data by using a telephonic wire.

A hybrid computer uses a modem to convert digital signals from a computer into analogue signals.

Explanation

Sulfur and nitrogen compounds in the atmosphere can combine with water and oxygen to form sulfuric acid and nitric acid, leading to acid rain.

Acid rain is a type of precipitation that contains high levels of sulfuric and nitric acid, which can harm the environment, infrastructure, and human health.

Explanation

Air is a homogeneous mixture of the gaseous substances

nitrogen,

oxygen, 

smaller amounts of other substances.

Explanation

The Maastricht Treaty established the EU, created EU citizenship, and paved the way for the euro.

It was signed by 12 countries.

It laid the foundations for the euro and set criteria for countries to join.

Explanation

Pakistan's COVID-19 vaccine drive began on Tuesday, starting with frontline healthcare workers.

Prime Minister Imran Khan attended the launch, where a doctor received the first Sinopharm shot.

China donated 500,000 doses of Sinopharm as a goodwill gesture to assist Pakistan.

Explanation

Khutbat-e-Ahmadiya published in 1870.

Khutbat-e-Ahmadiya written by Sir Syed Ahmed Khan.