Consider the reaction below. H2(g) CO2(g) Right arrow. H2O(g) CO(g) At equilibrium at 600 K, the following are true. [CO2] = 9. 5 x 10-4 M [H2] = 4. 5 x 10-2 M [H2O] = 4. 6 x 10-3 M [CO] = 4. 6 x 10-3 M What is the value of the equilibrium constant for this reaction in correct scientific notation? 4. 9 x 10-3 4. 9 x 10-2 4. 9 x 10-1 4. 9 x 103.

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.