Which of the following validities of a good science education curriculum helps students in 'learning to learn' science?

A teacher asks the following questions while involving students in an investigatory activity on seed germination: A. How much do they grow if we double the amount of water? B. How much are they growing every week? Which process skills are primarily developed by these questions respectively?

A middle school science teacher organizes a classroom debate on the topic 'Destruction of natural habitats due to urban encroachment'. Which of the following is NOT a recommended purpose of using debates as a classroom activity?