Tsunamis

...Most of the tsunamis that hit the Hawaiian Islands, however, originate thousands of miles away near the coast of Alaska, so these tsunamis have a much greater distance to travel and the inhabitants of Hawaii generally have time for warning of their imminent arrival.

Tsunamis are certainly not limited to Japan and Hawaii. In 1755, Europe experienced a calamitous tsunami, when movement along the fault lines near the Azores caused a massive tsunami to sweep onto the Portuguese coast and flood the heavily populated area around Lisbon. The greatest tsunami on record occurred on the other side of the world in 1883 when the Krakatoa volcano underwent a massive explosion, sending waves more than 30 meters high onto nearby Indonesian islands; the tsunami from this volcano actually traveled around the world and was witnessed as far away as the English Channel.

1. The possessive "their" in the third paragraph refers to .........

A. these tsunamis B. the inhabitants of Hawaii

C. the Hawaiian islands D. thousands of miles

I opt “A. these tsunamis” whereas the answer is “B. the inhabitants of Hawaii” I don’t know why.

2. The passage suggests that - the tsunami resulting from the Kr- volcano ..............

A. was unobserved outside of the Indonesian islands

B. resulted in little damage

C. caused volcanic explosions in the English Channel

D. was far more destructive close to the source than far away

I opt “D. was far more destructive close to the source than far away” because “the tsunami from this volcano actually travelled around the world and was witnessed as far awau as the English channel”. However, the answer is A. was unobserved outside of the Indonesian islands. I don’t know why.

Most of the tsunamis that hit the Hawaiian Islands, however, originate thousands of miles away near the coast of Alaska, so these tsunamis have a much greater distance to travel and the inhabitants of Hawaii generally have time for warning of their imminent arrival. Tsunamis are certainly not limited to Japan and Hawaii. In 1755, Europe experienced a calamitous tsunami, when movement along the fault lines near the Azores caused a massive tsunami to sweep onto the Portuguese coast and flood the heavily populated area around Lisbon. The greatest tsunami on record occurred on the other side of the world in 1883 when the Krakatoa volcano underwent a massive explosion, sending waves more than 30 meters high onto nearby Indonesian islands; the tsunami from this volcano actually traveled around the world and was witnessed as far away as the English Channel.

1. The possessive "their" in the third paragraph refers to .........

A. these tsunamis

B. the inhabitants of Hawaii

C. the Hawaiian islands

D. thousands of miles

I opt “A. these tsunamis” whereas the answer is “B. the inhabitants of Hawaii” I don’t know why.

2. The passage suggests that - the tsunami resulting from the Kr- volcano ..............

A. was unobserved outside of the Indonesian islands

B. resulted in little damage

C. caused volcanic explosions in the English Channel

D. was far more destructive close to the source than far away

I opt “D. was far more destructive close to the source than far away” because “the tsunami from this volcano actually travelled around the world and was witnessed as far awau as the English channel”. However, the answer is A. was unobserved outside of the Indonesian islands. I don’t know why.

Thanks a bunch.