What brought the end of the Song Dynasty ?

Read the excerpt below and answer the question. obierika was a man who thought about things. when the will of the goddess had been done, he sat down in his obi and mourned his friend’s calamity. why should a man suffer so grievously for an offense he had committed inadvertently? (p. 125) based on the context clues, the best definition for the word “calamity” in the excerpt above is disaster sadness luck indifference

The person who has the job of maintaining order in the house is the sergeant at arms. majority whip. speaker of the house. president of the house.

The first time that unmanned underwater "gliders" were used by ocean scientists to respond to an oil spill was after the