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:
Why did dinosaurs swallow stones? Complete General Knowledge Question and Answer for Class 6, 7, 8, ...
General Knowledge
Why do pigs wallow in the mud? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, ...
General Knowledge
Could the Mayans read and write? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9...
General Knowledge
Do you know “Indian classical music in space".
Do you know
Who was the first military pilot to fly officially?
1st in the World
GK Question "How Did The English Language Originate?" general knowledge book English 2021 current af...
General Knowledge
What are molluscs? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 1...
General Knowledge
GK Question "Know About The Light Of A Firefly?" general knowledge book English 2021 current affairs...
General Knowledge
What is pollination? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and...
General Knowledge
GK Question "What Is The Speed Of Sound?" general knowledge book English 2021 current affairs quiz a...
General Knowledge
Do animals mate for life?Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11...
General Knowledge
What is an airship? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and ...
General Knowledge
Do you know "Tvilight zone".
Do you know
How was the Grand Canyon created? Complete General Knowledge Question and Answer for Class 6, 7, 8, ...
General Knowledge
GK Question "Why Some People Are Left-Handed?" general knowledge book English 2021 current affairs q...
General Knowledge
What is a weed? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12 S...
General Knowledge
Do you know “Asian lion in natural habitat”.
Do you know
What is haemoglobin? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and...
General Knowledge
What causes volcanoes? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 a...
General Knowledge
When did dinosaurs die? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 ...
General Knowledge
