The adequacy of 100 GB of data for a month depends on your internet usage habits and the types of activities you engage in online. Here is a general breakdown of data usage for common online activities:

Browsing the web and checking emails: These activities consume a relatively small amount of data, typically ranging from a few kilobytes to a few megabytes per webpage or email.

Social media: Social media platforms, such as Facebook, Instagram, and Twitter, involve viewing images, videos, and posts. While individual activities may vary, social media browsing generally consumes several megabytes of data per hour of usage.

Streaming music: Streaming music services, like Amazon Music, YouTube, Spotify or Apple Music, use around 1-2 megabytes of data per minute of music streaming. This translates to approximately 60-120 megabytes per hour.

Streaming video: Video streaming, whether on platforms like YouTube, Netflix, Hulu or other streaming services, consumes a significant amount of data. On average, standard-definition (SD) video streaming uses about 1 GB of data for every 3-4 hours of streaming. High-definition (HD) and ultra-high-definition (UHD) streaming can consume significantly more data.

Online gaming: Online gaming data usage varies depending on the game, but it generally ranges from a few megabytes to several hundred megabytes per hour of gameplay.

Video calls: Video calls on platforms like Zoom or Skype consume varying amounts of data depending on the quality and duration of the call. On average, a 1-hour video call can use around 225-450 megabytes of data.

Considering the above estimates, 100 GB of data can be considered a generous amount for moderate to heavy internet usage. It should be sufficient for activities like web browsing, emailing, social media usage, streaming music, and occasional video streaming. However, if you frequently stream high-definition videos, play online games extensively, or engage in other data-intensive activities, you might approach or exceed the 100 GB limit.

It's always advisable to monitor your data usage and adjust your activities accordingly. Additionally, consider factors like the number of devices sharing the connection and whether you have access to Wi-Fi networks, as utilizing Wi-Fi for data-intensive tasks can help preserve your mobile data.