Explanation:

Explanation:

Box 1: business rules
You can create business rules and recommendations to apply logic and validations without writing code or creating plug-ins. Business rules provide a simple interface to implement and maintain fast-changing and commonly used rules.
Box 2: business process flows
Flows Power Automate includes several types of processes, each designed for a different purpose:
Automated flows. Create a flow that performs one or more tasks automatically after it ' s triggered by an event.
Button flows. Perform repetitive tasks simply by tapping a button on your mobile device.
Scheduled flows. Create a flow that performs one or more tasks on a schedule such as once a day, on a specific date, or after a certain time.
Business process flows. Ensure that people enter data consistently and follow the same steps every time they work in an app by creating a business process flow.
Workflows and actions. Dynamics 365 customizers may be familiar with the classic Common Data Service processes, which are workflows and actions.
Box 3: Common Data Model
Model-driven app design is a component-focused approach to app development. Model-driven app design doesn't require code and the apps you make can be simple or very complex. Unlike canvas app development where the designer has complete control over app layout, with model-driven apps much of the layout is determined for you and largely designated by the components you add to the app.
Reference:
https://docs.microsoft.com/en-us/powerapps/maker/model-driven-apps/guide-staff-through-common-tasks-processes
https://docs.microsoft.com/en-us/powerapps/maker/model-driven-apps/model-driven-app-overview

Explanation:
Box 1: Yes
With embedded canvas apps, makers can bring the power of canvas apps to their model-driven forms. Using embedded canvas apps, it is possible to create rich visual areas on a form and display data from a variety of sources right next to data from Microsoft Dataverse.
Box 2: No
Box 3: Yes
Reference:
https://docs.microsoft.com/en-us/powerapps/maker/model-driven-apps/embed-canvas-app-in-form

Explanation:

Reference:
https://docs.microsoft.com/en-us/power-bi/fundamentals/desktop-getting-started

Explanation:

Reference:
https://www.onactuate.com/upgrades/what-is-the-new-powerapps-portal/
https://docs.microsoft.com/en-us/powerapps/maker/portals/configure/page-templates