To make Terraform's logging more verbose for troubleshooting purposes, you must configure theTF_LOG environment variable. This variable controls the level of logging and can be set to TRACE, DEBUG, INFO, WARN, or ERROR, with TRACE providing the most verbose output.References= Detailed debugging instructions and the use of environment variables likeTF_LOGfor increasing verbosity are part of Terraform's standard debugging practices

Explanation
To see all the resources that Terraform will delete, you can use either of these two commands:
terraform destroy will show the plan of destruction and ask for your confirmation before proceeding.
You can cancel the command if you do not want to destroy the resources.
terraform plan -destroy will show the plan of destruction without asking for confirmation. You can use this command to review the changes before running terraform destroy. References = : Destroy Infrastructure : Plan Command: Options

Terraform configuration can import modules from various sources, not only from the public registry. Modules can be sourced from local file paths, Git repositories, HTTP URLs, Mercurial repositories, S3 buckets, and GCS buckets. Terraform supports a number of common conventions and syntaxes for specifying module sources, as documented in the [Module Sources] page. Reference = [Module Sources]

The module source path that does not specify a remote module is source = "module/consul". This specifies a local module, which is a module that is stored in a subdirectory of the current working directory. The other options are all examples of remote modules, which are modules that are stored outside of the current working directory and can be accessed by various protocols, such as Git, HTTP, or the Terraform Registry. Remote modules are useful for sharing and reusing code across different configurations and environments. Reference = [Module Sources], [Local Paths], [Terraform Registry], [Generic Git Repository], [GitHub]

This is how you specify a module's version when publishing it to the public Terraform Module Registry, as it uses the tags from your version control system (such as GitHub or GitLab) to identify module versions. You need to use semantic versioning for your tags, such as v1.0.0.