Which two planets are most alike/
a. jupiter and mercury
b. earth and mercury
c. mars and uranus
d. uranus and venus

Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect

The reactions that occur in the ribosome, where amino acids are combined to form proteins are anabolic or catabolic?

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?