Explanation

Box 1: Yes
You can use keyboard shortcuts in PowerApps. Keyboard shortcuts give you an alternate way to do common tasks instead of using your mouse or tapping with your finger. They help in seamless navigation of the interface.
Box 2: No
The following software combinations are the supported recommendations for consuming PowerApps with a screen reader:
Windows: Microsoft Edge / Narrator
macOS: Safari / VoiceOver
Android: PowerApps app / Talkback
iOS: PowerApps app / VoiceOver
Box 3: Yes
Users who have vision, hearing, or other impairments can use your canvas app more easily and successfully if you consider accessibility as you design how the app looks and behaves. If you're not sure how to make your app more accessible, you can run the Accessibility checker in PowerApps Studio. This tool not only finds potential accessibility issues but also explains why each might be a potential problem for users who have a specific disability and offers suggestions on how to resolve each issue. The Accessibility checker detects screen-reader and keyboard issues for you, and you can find information about how to fix color-contrast issues by using accessible colors.
Reference:
https://docs.microsoft.com/en-us/powerapps/user/keyboard-shortcuts
https://docs.microsoft.com/en-us/powerapps/user/screen-reader
https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/accessibility-checker

Reference:
https://www.tutorialspoint.com/power_bi/power_bi_quick_guide.htm

Explanation

Box 1: automated
Automated flows start with an event or trigger, such as an email being received. These also support a multitude of actions in the 200+ Flow connectors.
Box 2: business process
The business process flow that creates stages or screens that enforce a certain sequence of steps. It collects data from users for each step in the stage and can kick off automated workflows.
Box 3: scheduled
Scheduled flows run regular reports that are sent out to a team and summarize everything that's happened in the past week. This includes everything from simple daily scheduling to more complex scheduling like "every
3rd Monday."
Box 4: instant
An instant flow is triggered when you click a button inside of the Flow mobile app, SharePoint, Dynamics, PowerApps, or Excel that passes context directly into your flow.
Note: There are four different Flow types that you can choose from when starting out. You can create a scheduled flow, automated flow, instant flow, or a business process flow.
Reference:
https://www.avepoint.com/blog/office-365/office-365-automation/

Explanation
Triggers like When a record is created, When a record is updated, and When a record is deleted initiate your flow within a few minutes of the event occurring. In rare cases, your flow can take up to 2 hours to trigger.
Reference:
https://docs.microsoft.com/en-us/power-automate/connection-dynamics365

Explanation
Box 1: No
You can reorder screens.
In the left navigation bar, hover over a screen that you want to move up or down, select the ellipsis button that appears, and then select Move up or Move down.
Graphical user interface, application Description automatically generated

Box 2: No
You can add screens to the app after it has been created.
Box 3: No
For example, you can change a button's shape. By default, Power Apps creates a rectangular Button control with rounded corners. You can make basic modifications to the shape of a Button control by setting its Height, Width, and Radius properties.
Reference:
https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/add-screen-context-variables
https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/controls/control-button