Participation 19 - MongoDB Queries

Read carefully before submitting: 

1. Please paste your code and upload the screenshot of your output for each exercise using MongoDB Compass.  Make sure screenshots are uploaded fully, as it takes a few seconds for them to appear in each question submission. Failure to submit screenshots will result in 2 points deduction. 

2. Please expand any array or object fields that are shown in the output. This is only important when we are working with either an object or array in a question. 

3.  If the task is asking to alter or remove a field, please indicate such change in your screenshot. You can either highlight or color/outline the change or submit both before and after screenshots with changed or removed fields shown.