Noun and the Number

 Number: If a Noun tells about one or more than one is called Number. 

                                 Ex- A boy , A girl , A pen , Boys , Girls ....etc.

Kinds of Number : 

1. singular Number        2. Plural Number 

1. Singular Number :- If a Noun tells about only one, it is called singular Number.

                              Ex- A student 

2. Plural Number :-  If a Noun tells about more than one it is called Plural Number. 

                             Ex- students

• Rules for changing a singular into plural number :

Rule(1) : Generally किसी  भी Noun के last में s जोड़कर Plural बनाया जाता है। 

Singular                                                           Plural

Fan                                                                   Fans 

Flat                                                                   Flats

Shirt                                                                  Shirts

Horse                                                                 Horses

Dog                                                                    Dogs

Rule(2) : यदि किसी Singular Common Noun का last letter  - s- , sh , ch , ss , x , z हो , तो es जोड़कर Plural बनाया जाता है। 

Singular                                                              Plural

Bus                                                                      Buses

Kiss                                                                     Kisses 

Match                                                                  Matches

Tax                                                                        Taxes

Malaria disease

Some of the human diseases are caused by protozoans. Plasmodium is a tiny protozoan is responsible for malaria disease. Different species of plasmodium are responsible for different type of malaria. Malaria caused by plasmodium falciparum is the most serious one and can even be fatal. Plasmodium live in a wide variety of moist habitats including fresh water, marina environment and the soil. Plasmodium enters the human body through the bite of infected female Anopheles mosquito. Then attack the red blood cells (RBCs) resulting in their rupture. The rupture of RBCs is associated with release of toxic substance, hemozoin , which is responsible for the chill and high fever recurring every three to four days.