Green barriers refer to various restrictive or prohibitive measures adopted by some countries and international organizations to protect the ecological environment, human and animal and plant life safety and health through the development of environmental standards and regulations. A type of non-tariff trade barrier that trade affects. According to the above definitions, Which of the following are green barrier behaviors:. ['A large supermarket chain only sells imported agricultural products that have passed the green food inspection.', 'More than 10 tons of cotton yarn sold by a textile import and export company to Europe stopped exporting due to detection of banned azo dyes in Germany.', 'A company exported garlic abroad. Due to a problem with the temperature control facilities on the freighter on the way, some garlic deteriorated after arriving at the port. As a result, all garlic was returned.', 'The sales volume of wooden bedroom furniture produced by a factory in the U. S. market is considerable, but due to the increase in tariffs on wooden bedroom furniture in the United States, its export volume is greatly affected.']