What are barnacles?
Barnacles are small shellfish. They swim freely when they are hatched but latch on to a surface once they are adults. Millions of barnacles may be thus attached to a surface like the hull of a ship, forming a crust. This can reduce the speed of the ship by 50%! Loss of time and wear and tear on machinery because of the barnacles can cost the ship’s owners dear.
Related posts:
What is forestry? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12...
General Knowledge
What is slate? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12 St...
General Knowledge
When was ether first used in surgery? Complete General Knowledge Question and Answer for Class 6, 7,...
General Knowledge
Why does the sun have spots on it? Complete General Knowledge Question and Answer for Class 6, 7, 8,...
General Knowledge
GK Question "What Do You Know About FBI?" general knowledge book English 2021 current affairs quiz a...
General Knowledge
What was a death mask? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 a...
General Knowledge
GK Question "When Were Dogs Domesticated?" general knowledge book English 2021 current affairs quiz ...
General Knowledge
GK Question "First Of All Who Thought Of The Alphabets?" general knowledge book English 2021 current...
General Knowledge
Do you know “The first digitised version of the Ramayana”.
Do you know
Who were the Spartans?Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 an...
General Knowledge
How is wind speed measured? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10,...
General Knowledge
What is the pulse? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 1...
General Knowledge
Can a porcupine shoot its quills? Complete General Knowledge Question and Answer for Class 6, 7, 8, ...
General Knowledge
What is amnesia? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12 ...
General Knowledge
What makes bread dough rise? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10...
General Knowledge
What is an autopsy? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and ...
General Knowledge
Who built the Tower of London? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, ...
General Knowledge
Who was Julius Caesar? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 a...
General Knowledge
GK Question "What Do You Know About Magnet?" general knowledge book English 2021 current affairs qui...
General Knowledge
Which is the most well-known comet? Complete General Knowledge Question and Answer for Class 6, 7, 8...
General Knowledge