The birth of the island of surtsey was a violent event. First, a large, black cloud burst from the water. A rumbling sound came from under the ocean. The cloud grew to 12,000 feet high. Giant explosions spewed ash, dust, and hot rocks. A mountain rose from the water. A volcano in the ocean had erupted.

1. underline the topic sentence

2. what is the topic of the selection?____________________

3. list 5 details that support the main topic.

A.______________________________

B.______________________________

C.______________________________

D.______________________________

E.______________________________