Knowledge about science

Dear friends hope you all love science,I am a student so i like to know about the world of science

science basically consist of physics,chemistry and biology

there also many superstitions mainly based on scientific reasons

which we consider to be useless but they are often true for eg.in my country the people from the village believed that drumstick tree is the tree in which the ghost live in but after a few years later the scientists found out that the drumstick tree used to release carbon dioxide which made the people sitting or standing near the drumstick tree suffocated due to lack of oxygen.

so friends we must never criticize the old myths because they had some or the other reason behind them 

 I request if you find any wrong with my content you can post your own views.