No, the seafood in Costa Rica has not been contaminated by radiation from Japan's disaster. Costa Rica is very far from Japan.
Japans disaster this year 2011 effected the water because during the earthquake nuclear reactors that create nuclear power were damaged and they released radiation and high amounts of radiation in water and the air can potentially kill people if there is too much radiation taken in
Some of Japans crops are potatoes, seafood, tea, and rice,bamboo
Japans natural resources are the ocean, the forest, and farming
japans house- the japans house!
Rice, seaweed, soy products (tofu, miso, soy sauce, etc), sesame seeds, seafood (anything that can be eaten), peaches, cherries, plums, persimmons-- Sushi and sashimi are popular in the United States.
the pheasant!
Note three provisions in japans new constitution
Japans current constitution was adopted on May 3,1997
Japans traditional drink is Kalambiji and it has soy beans and green tea mixed.
Trains
food
Japans willingness to adopt more of china's culture