Fill in the blanks with suitable words:
Fungi like __________ and _________ can be useful
Fill in the blanks with suitable words :
Detergents contain ______ like fertilizers.
mercury is a _______ substance.
Fill in the following blanks with suitable words: (a) A current is a flow of ... For this to happen there must be a ...circuit. (b) Current is measured in .... using an ..... placed in .... in a circuit.
Fill in the following blanks with suitable words :
(a) Fleming's Rule for the motor effect uses the.......... hand.
(b) A motor contains a kind of switch called a ............which reverses the current every half ..............