Explanation

A normal healthy human breathes about 11,000 litres of air in a day

breath air by the process of breathing                                               

Additional information:

The average adult at rest inhales and exhales something like 7 or 8 liters of air per minute.

Explanation

• World Wide Web (WWW)
  
• World-Wide Web Worm (WWWW)

• English scientist Tim Berners-Lee invented the World Wide Web in 1989.

• WWW Birth place CERN near Geneva, Switzerland.

• The browser was released to the general public in August 1991.

Explanation

Mimas is the smallest and innermost of Saturn's major moons.

Explanation

Agrostology, the branch of botany concerned with the study of grasses, especially their classification.

Agrostology means مطالعہ گھاس