Question Text
Question 2 :
<ol style="display: inline !important;"><li style="display: inline !important;">What is geothermal energy ?</li></ol>
Question 15 :
If you fix a burning candle on a petri dish it will continue to burn but when you invert a beaker the flame goes off because? 
Question 16 :
Select the correct answer for the statement given below:The product formed when carbon burns in oxygen of the air is:
Question 21 :
When methane is burnt in an excess of air, the products of combustion are ?<br/>
Question 24 :
Quality that is not suitable for a fuel is ________ .
Question 26 :
A substance which reacts with oxygen giving heat is called a combustible substance. Which one of the following is a combustible substance?<br/>
Question 28 :
A physical process in which a substance reacts with oxygen to give off heat is called combustion.
Question 33 :
The flame of the candle has three zones. The outer zone is blue, the middle zone is yellow and the inner zone is black. Which is correct regarding this?
Question 34 :
In foam type fire extinguisher _______ is responsible to put off fire.