The state may however limit the freedom of expression on certain grounds such as national security
I believe the answer is: concept of <span>conservation
concept of conservation refers to the understanding that something would stay in the same quantity even though it is moved to different medium/appearances.
On average, understanding of </span>concept of conservation would not be developed before we enter the age of 7.
Answer: Pretty sure its A :)
Explanation: tell me if its wrong
The European Union is set up with the aim of ending the frequent and bloody wars between neighbours, which culminated in the Second World War. As of 1950, the European Coal and Steel Community begins to unite European countries economically and politically in order to secure lasting peace.