Firstly; type ur question & post it in the respective group & then in order to upload a pic related to the question...then answer ur question & then go to "Attach"-> then go to "gallery" & select the respective picture that u wanted to upload & after croping it shall be uploaded..By this u will be able to upload a pic.....In order to upload a video..u need to copy that video's link...And while answering the question.. go to "Attach"->"Video"...it says u to paste that video's link..& then select the class in which u want the video to be uploaded & then click on "Publish"...by this u will be able to upload a video....

However, I can provide you with a general guide on how to upload a document or video on an app or website. Please note that the specific steps may vary depending on the platform you are using.

Uploading a Document:
1. Login to the App: Open the app or website and log in to your account using your credentials.

2. Navigate to the Upload Page: Look for an option or tab that allows you to upload documents. This might be labeled as "Upload," "Add Content," or something similar.

3. Choose the Document: Click on the upload button and select the document you want to upload from your device's file explorer.

4. Provide Information: Fill in any required information about the document, such as a title, description, or tags. This helps users find and understand your document better.

5. Confirm and Upload: Review the details you've provided and click on the "Upload" or "Submit" button to start the upload process. Depending on the document size and your internet connection, it may take some time to complete.

Uploading a Video:
1. Login to the App: Log in to your account on the app or website using your credentials.

2. Access the Video Upload Page: Look for a specific section or option for uploading videos. This is typically located in the user dashboard or a navigation menu.

3. Select the Video: Click on the upload button and choose the video file you want to upload from your device's file explorer.

4. Add Video Details: Fill in any necessary information about the video, such as title, description, tags, or category. This helps users find and understand your video.

5. Start the Upload: Review the provided information and click on the "Upload" or "Submit" button to begin the video upload process. Depending on the video's size and your internet connection, it may take some time to complete.

Remember to always comply with the app's guidelines and terms of service when uploading content. Additionally, ensure that you have the necessary rights and permissions to upload the document or video you intend to share.

Please note that the steps provided are general guidelines, and the actual process may differ depending on the specific app or platform you are using.