Say if the following statements are True or False. ответьте, верны ли следующие утверждения (True) или нет (False). 1. The eruption of Krakatau is thought to be the first global disaster. 2. The sound of Krakatau explosion was heard for thousands of kilometers. 3. The aftereffects of Krakatau eruption were felt only in the Indian Ocean area. 4. The scientists had known how dangerous Krakatau volcano might be. 5. The eruption of Krakatau killed people on the island where the volcano was. 6. Now Krakatau is an extinct volcano. 7. The eruption of Krakatau produced a column visible by all ships passing the Sunda Strait.