Because now the reader wants to know who the person is also
Explanation:
number of people or things that are located, gathered, or classed together is called group
A vaccine is a biological preparation that provides immunity to a particular infectious disease. It typically contains an element that resembles a disease causing microorganism.
Explanation:
Vaccine is used to stimulate our immune system and provide immunity against a particular disease by producing antibodies against that disease.
Process of injecting vaccine in our body is termed as vaccination.
Vaccine is made from some weakened part or killed forms of the microorganism that cause a particular disease for which vaccine is being prepared. Toxin parts or proteins strands of microorganism can also be used for this purpose.
First vaccine was developed in 1796. This vaccine was for smallpox and it was developed by Edward Jenner.
Answer:
1.You can't have the flowers delivered tomorrow because it's a public holiday
2.The store will give your money back provided you have a receipt
3.Sophia wouldn't have had an accident if the roads hadn't been icy