Analyst Questions

Oligopoly is market structure where a small number of large firms are there. Oligopolistic industries are characterized by a few dominant firms and substantial entry barriers.

Sugar is a component of Carbohydrates.

Digboi, in Assam is where the oldest oil refinery in India. It was build in 1901.

A nurse cannot diagnose a patient among the given options. 

The 828-metre (2,717 ft) tall Burj Khalifa in Dubai has been the tallest building since 2008.

The 180th meridian or antimeridian is the meridian 180° east or west of the Prime Meridian, with which it forms a great circle dividing the earth into the Western and Eastern Hemispheres.

It is common to both east longitude and west longitude.

It is used as the basis for the International Date Line because it mostly passes through the open waters of the Pacific Ocean. However, the meridian passes through Russia and Fiji as well as Antarctica.

The second would employ a comma, or semi-colon, and not a colon so it is not properly punctuated.

The third sentence would not be correct because it uses 'like', usually used for comparison. Since you are not comparing two questions, it would not be appropriate.

The fourth sentence has 'is' before the colon, which is a implies declaration and not listing. So, again, it would not be appropriate.

Hence, the first sentence, however, is punctuated correctly.

Deep fried foods are carcinogenic because they are rich in fats.