Orcas (or killer whales) are difficult to study because it is costly, and not only that orcas appear in remote loactions, so it is harder for scientists to find them and study them in the wild.
Answer:
Louisiana was named after Louis XIV, King of France from 1643 to 1715. When René-Robert Cavelier, Sieur de La Salle claimed the territory drained by the Mississippi River for France, he named it La Louisiane.
Poseidon, he is the god of Earthquakes and the Sea.
What cannot you and I perform upon
The unguarded Duncan? what not put upon
His spongy officers; who shall bear the guilt
Of our great quell?
Answer: third one
Explanation:
You go from the verb in the sentence (was) and underline to the end.