answer is in attachments, Have a look.
The president cannot be chief justice - this would be a breach of the separation of powers. Chief Justice is a member of the judicial branch of the government; and the president is the head of the executive branch of the government, so they should not be the same person - the answer is d)
The process by which new information displaces older information in short-term memory could explain why someone, for example, could remember a phone number and suddenly he or she will forget the last three digits of the number. In order to avoid this, we can enhance our short-term memory skill by chunking or having a rehearsal.
Answer: By providing opportunity to promote further questioning and thinking.
Explanation: In discovery Science, the major thing we do is to think about what we are discovering, then ask questions which our discoveries will solve. Because the teacher has given a platform where each group should think about what they have discovered, and then share it with the rest of the class. Any member of the class has an opportunity to ask question, about what the group has discovered. This makes it a discovery Science, because thinking and questioning has been involved.