Explanation

Let's calculate the total number of items:

Total items = CDs + Pencils + Books + Mango

= 3 + 4 + 7 + 1

= 15

The ratio of CDs to total items is:

3 (CDs) : 15 (Total items)

Explanation

Explanation

Water stored at height in a dam has potential energy due to its position.

This energy is later converted into kinetic and electrical energy in hydroelectric power plants.

Explanation

The Caspian Sea is the world’s largest enclosed inland body of water by area.

It is considered both a lake and a sea, spanning about 371,000 sq km.

It is a landlocked, saltwater lake located on the border between Europe and Asia.

Explanation

"Everyone but albinos" means all people except albinos.

"But" is used here as an exception word, excluding albinos from the general statement.

Explanation

"Which was written by Pearl Buck" is a correct relative clause describing The Good Earth.

It gives extra information about the novel in a grammatically complete and clear way.

Explanation

Tooth enamel is the hardest part of the human body, even stronger than bone.

It is made of calcium phosphate, arranged to resist damage.

Enamel acts as a protective outer layer for teeth.

It guards against wear, decay, and extreme temperatures.

Explanation

Karachi is situated along the southern coast of Pakistan, bordering the Arabian Sea.

It is the country’s largest city and a major seaport in southern Pakistan.

Explanation

A dead body does not maintain a fixed temperature — it cools down to match the ambient (surrounding) temperature over time.

This process is called algor mortis, and the body typically loses about 1.5°C per hour after death until it reaches room temperature.

Explanation

Let's break it down:

2 typists can type 2 pages in 5 minutes, so:

2 typists can type 4 pages in 10 minutes.

To type 20 pages in 10 minutes, we'll need:

20 pages / 4 pages = 5 times more typists

Since 2 typists can type 4 pages, we'll need:

2 typists × 5 = 10 typists