What are the criteria you would consider when trying to categorise something as a good fuel ?

What is a good fuel?

What are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account?

What different criteria would you choose to classify people that you meet ofter?

Name two energy sources that you would consider to be renewable. Give reasons for your choices.

Give the names of two energy sources that you would consider to be exhaustible.Give reasons for your choices.

What are the various energy transformations that occur when you are riding a bicycle?

What do you observe when adsorption takes place from solution phase.

What is the uniform motion ? How would you represent it graphically?

What would be the work done when the displacement of the object is zero?

Hydrogen has been used as a rocket fuel. Would you consider it a cleaner fuel than CNG? Why or why not?