Can somebody translate this mRNA strand into a strand of anti-codons? HELP!

Which is an example of a decomposer? a. bear b.algae c.grass d.bacteria d bacteria

Consider the following reaction: 2h2 + o2 —> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?

The earth's oceans are made up of chlorine, and trace elements. a) carbon, oxygen b) oxygen, silicon c) hydrogen, oxygen d) nitrogen, oxygen