You are viewing a single comment's thread from:

RE: [Puzzle|WordSearch]STEM Saturday #27 Promoted Post Word Search

in #puzzles • 2 years ago

chemical

2.2 million years ago a star that was between 194 and 424 light years from us it exploded, leaving a chemical signature in the sediments of the ocean floor.

2 years ago in #puzzles by
$0.09
  • Past Payouts $0.09, 0.00 TRX
  • - Author $0.04, 0.00 TRX
  • - Curators $0.04, 0.00 TRX
5 votes
Reply 0

Coin Marketplace

STEEM 0.19
TRX 0.14
JST 0.030
BTC 60122.55
ETH 3199.29
USDT 1.00
SBD 2.43