Q1. Using hr schema, write a query to display first name, last name, department name, city of the department and the street address for each employee who earns more than 10000$ per month. (1.5) Q2. Write a query to display employee's name, his salary, the difference between his salary and the lowest salary for his job, and the difference between his salary and the highest salary in his job. (1.5) Q3. Write a query to display each street address with and the name of the departments exist in it. Exclude departments 100, 80, 50 and 30 from the summations. (2)