You are designing a multi-tier web application architecture that consists of a fleet of EC2 instances and an Oracle relational database server. It is required that the database is highly available and that you have full control over its underlying operating system. Which AWS service will you use for your database tier?

What should her next step be if she is attempting to highlight cells with values greater than 90 but less than 100?

Write a method that accepts a string object as an argument and returns the number of words it contains. for instance, if the argument is "four score and seven years ago", the method should return the number 6. demonstrate the method in a program that asks the user to input a string and then passes that string into the method, printing out whatever the method returns.

Write lines of verse that rhyme to remember the following information: acid rain is a type of air pollution caused by chemicals in the air.