Question

4) Why do farmers stick an iron staff into the ground
an iron staff into the ground while working in the field in rainy conditions?
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Answer 1

To protect from lightening .The electeical energy passes from the metal strip and get discharge safely into ground .

Hope this help you

Answer 2

Farmers stick an iron staff into the ground while working in the field in rainy condition to protect from lightings.

Usually during rainy causes the lighting and thender Strom's.

If lighting stickers the field then it causes loss of property's and half kills the people working in the field.

Explanation:

Here iron staff act as lighting conductor if lighting stricks, it will hit the top of lighting conductor.The electricl energy passes through the metal steps and gets discharged safes into the ground through buried metal plate.Hence farmers is protected from damage himself and to his field.