Question for answer correctly:- 1.) how does the vaccine help to preve

1.	Question for answer correctly:- 1.) how does the vaccine help to prevent diseases?2.) why do birds migrate? 3.) which irrigation system is useful in water scarcity area? why?
Answer» Answer: ans 1]Vaccines are one of the greatest advancements in the history of public health.Vaccines were first developed—at least in a rudimentary way—in the 1700s, when people used COW pox to build immunity to smallpox. Then, in the 1800s, Louis PASTEUR found a way to create vaccines in the lab, and the modern age of vaccines had begun. 2 ans]The decrease in food supply caused due to the change in season FORCES the BIRDS to migrate to a place where there is ample supply of food. ans 3]Drip or Trickle Irrigation Method (Modern Irrigation Method):- A recently developed irrigation system known as drip irrigation also known as “Trickle Irrigation” originally developed in Israel, is becoming popular in areas of water scarcity. In this irrigation system, a little bit of water is applied at regular intervals in the form of water droplets through nozzles connected to tubes spread over the soil to IRRIGATE a limited area around the plant.

Question for answer correctly:- 1.) how does the vaccine help to prevent diseases?2.) why do birds migrate? 3.) which irrigation system is useful in water scarcity area? why?

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Answer:

ans 1]Vaccines are one of the greatest advancements in the history of public health.Vaccines were first developed—at least in a rudimentary way—in the 1700s, when people used COW pox to build immunity to smallpox. Then, in the 1800s, Louis PASTEUR found a way to create vaccines in the lab, and the modern age of vaccines had begun.

2 ans]The decrease in food supply caused due to the change in season FORCES the BIRDS to migrate to a place where there is ample supply of food.

ans 3]Drip or Trickle Irrigation Method (Modern Irrigation Method):- A recently developed irrigation system known as drip irrigation also known as “Trickle Irrigation” originally developed in Israel, is becoming popular in areas of water scarcity. In this irrigation system, a little bit of water is applied at regular intervals in the form of water droplets through nozzles connected to tubes spread over the soil to IRRIGATE a limited area around the plant.

Question for answer correctly:- 1.) how does the vaccine help to prevent diseases?2.) why do birds migrate? 3.) which irrigation system is useful in water scarcity area? why?

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Question for answer correctly:- 1.) how does the vaccine help to prevent diseases?2.) why do birds migrate? 3.) which irrigation system is useful in water scarcity area? why?​

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Question for answer correctly:- 1.) how does the vaccine help to prevent diseases?2.) why do birds migrate? 3.) which irrigation system is useful in water scarcity area? why?