Questions

The last line from the file "trial" would be read twice. To avoid this, ues:

       While ( fgets (str, 80, fp) ! = NULL)

               puts (str);

Cholesterol belongs to lipids class of molecules. Lipids are sometimes called as fats which act as storing energy and structural components of cell membranes.

India’s space agency on Feb 15th, 2017 launched a record 104 satellites from a single rocket as it crossed another milestone in its low-cost space-exploration program. The satellites from seven countries were carried by the Indian Space Research Organization’s Polar Satellite Launch Vehicle on its 38th consecutive successful flight. On board was a 714kg satellite for earth observation and more than 100 smaller satellites weighing less than 10kg each. Three were Indian-owned, 96 were from US companies, and the rest belonged to companies based in Israel, Kazakhstan, the Netherlands, Switzerland and the United Arab Emirates. Most were owned by Planet Labs Inc, a US-based Earth-imaging company. 

Pyrenees, a chief mountain in Europe, forms a part of the great mountain across Europe and Asia.

Chawrasia, became the first Indian to successfully defend a European Tour title and the first player to win their first four events in their home country.

The founder of Arya Samaj, Swami Dayananda Saraswati gave the motto "Go Back to Vedas" to propagate the true knowledge of Vedas.