Some students who looked at Figures 4 and 5 did not realise that they applied to all metals. Instead, they thought that the
figures only showed a metal from Group 1 of the Periodic Table.
Suggest why they thought this, and describe changes the students
might have made so that the diagrams showed a metal from
Group 2
(5 marks)

what are the statements

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.