Charcoal and copper are black how do you distinguish

What element breaks down into yttrium-90?

Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols