What is the person who flips letters on a game show called

Forests and meadows are often cut down to make way for farms or large number of new homes. what are some of the elements of ecosystems that are lost when plants in these areas are removed?

Find the empirical formula of each of the following compounds. given mass or for each element in a sample of the compound 3,611 g ca; 6.389 g c1

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?