Go back to the text and re-read a passage where Watson made a discovery. If Sherlock praises him, you've got your answer. I'm sorry if this wasn't much help, but I don't have any text to go off of.
Because it shifted the international focus towards the Antarctic and resulted in numerous scientific and geographic expeditions. As many as 10 countries launched 17 Antarctic expeditions. Actually, the failed mission of Shackleton resulted in great interest among the countries to conquer the unconquered.
The sentence that says "Rainsford and Zaroff glared at each other," because the verb "glared" contains more imagery than the other examples.
