Help to make Alexa smarter on Alexa Answers. Sign in with Amazon

Miscellaneous

What is the lightest thing on earth?


Graphene aerogel is the lightest substance on earth.

{{ relativeTimeResolver(1603717380052) }}

LIVE
Points points 21
Rating 0

Similar Questions

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world

LEARN MORE