Answer:
Japan was geographically isolated from other regions
Explanation:
One important activity associated with a free press is: investigating and criticizing government actions
A press is considered to be free if both the government and the citizens cannot limit the news delivering process.
Whether a press could investigate and criticize the government is a great indicator of the freedom of the press. Nations without free press (such as north korea), tend to impose legal punishment for all individuals that talk negatively about the government.
Drown their crops with salt water in order to kill their pests