Why do hot air balloons rise up?
Hot air balloons are filled with helium. Air inside the balloons are heated with gas burners. This hot air is lighter than the surrounding air and helps the balloons rise. The balloons land when the hot air is allowed to escape gradually or by regulating the heat of the burners.
Related posts:
Who discovered heredity? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11...
General Knowledge
Do you know “HauzKhas, old and new”.
Do you know
GK Question "Why Do People Have Different Coloured Skins?" general knowledge book English 2021 curre...
General Knowledge
GK Question "Do You Know, That A Cow Chews Its Cud?" general knowledge book English 2021 current aff...
General Knowledge
GK Question "Why The Ocean Is Salty?" general knowledge book English 2021 current affairs quiz and a...
General Knowledge
When was the crossword puzzle invented? Complete General Knowledge Question and Answer for Class 6, ...
General Knowledge
What are yin and yang?Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 an...
General Knowledge
Do you know “Indian airports ranked amongst the world's Top 5”.
Do you know
Do you know “Sarpakatu, a fort that a serpent cannot climb”.
Do you know
How do primates communicate with each other? Complete General Knowledge Question and Answer for Clas...
General Knowledge
When did the first aerial warfare take place?
1st in the World
What are the common features of living things? Complete General Knowledge Question and Answer for Cl...
General Knowledge
Do you know “Orchid Sanctuary”.
Do you know
What is the origin of fairy tales? Complete General Knowledge Question and Answer for Class 6, 7, 8,...
General Knowledge
Do you know “Mecca Masjid, Hyderabad".
Do you know
What is plasma? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12 S...
General Knowledge
Do you know "Purifying water with waste".
Do you know
Do you know "Smuggling wares on display at Alfandega, Goa".
General Knowledge
Who was Cyrus the Great? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11...
General Knowledge
What causes typhoid fever? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, ...
General Knowledge
