1- In Javascript how do you change the text between two tags

1- In Javascript how do you change the text between two tags? For instance write the Code to change

Hello World!

into

Hello People!

2- What is the result of this operation 10%3?3- Write two loops (using different structures) that count from 1 to 8 and print the result to screen4- What is the different in prompt and alert in javascript?5- Write javascript function that given parameter ‘radius’ calculates and returns the area of a circle. The equation for area is pi(3.14) times the radius squared