delete all that are checked in laravel

Hello I want to delete all the rows from the database which are being checked by the user but whenever I do this I get this error "Missing argument 1 for App\Http\Controllers\UploadController::deleteSelectedUploads()". I know why this error is coming because I haven't passed any id to it and if I pass any id to it then it says Undefined variable: upload. Please help me out. I know I have been posting a lot of questions nowadays and later solve it on my own but this is the only way of learning I guess.

Controller

 public function deleteSelectedUploads($id) {

    //$uploads = $this->upload->get($id);
    // $checkboxes = $this->request->input('checkbox[]');

    // if((Auth::user()->role=='admin')) {
    //     $this->upload->deleteUpload($id);
    // } else {
    //     Session::flash('message', "Oooopsss ... ! seems like you don't have the authority to 
    //     <span style=font-weight:bold;'><u>DELETE</u></span> this file.
    //     <span style='font-size:15pt; font-weight:bold;'> Contact ADMIN </span>");
    //     return redirect('home');
    // }

$checkbox = Input::all();

foreach($checkbox['checkbox'] as $id) {
    Upload::where('id', $id)->delete();
}

    Session::flash('message', 'You File has been deleted');
    return redirect('home');
 }

View

<th><form action="/delete-selected-uploads" method="get">

      <input type="checkbox" name="checkbox" onClick="toggle(this)"/>
      <input type="submit" class="btn btn-block btn-success btn-xs" value="Delete all checked">
                    </form>
                  </center>
              </th>

             <td>
               <input type="checkbox" name="checkbox[]" id="" value="">
             </td>

Route

Route::get('/delete-selected-uploads', 'UploadController@deleteSelectedUploads');