Why can’t the flames from the chimneys of petroleum refineries not be utilized for anything?
Dhivya R., Chennai
Why do black spots appear on cloth when it is kept wet for many days?Akshay Pola, Bidar, Karnataka Why do eyes water when we have cold?
Krishna Priyanka, Visakhapatnam, Andhra Pradesh
Andhra Pradesh
How does a radio transistor receive the radio waves?
D.stalinbarath, Tiruchirapalli, Tamil Nadu What happens to the minerals and vitamins of milk when we prepare tea? Dothey remain unchanged?Manish Kumar, New Delhi
Why do we feel sleepy during boring classes?
Sharan M., Puducherry
