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28 Oct 2023, 10:50
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Dropdown 1: Australia and Oceania
Dropdown 2: 43%
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
72% (02:45) correct
28%
(02:50)
wrong
based on 1845
sessions
History
Date
Time
Result
Not Attempted Yet
Attachment:
000.jpg [ 47.96 KiB | Viewed 23524 times ]
For each of several continents, the graph shows the total annual precipitation, the percentage of precipitation that directly returns to the atmosphere through evaporation, and the percentage that flows into the oceans as runoff. From each drop-down menu, select the option that creates the most accurate statement based on the information provided.
The total volume of annual precipitation that directly returns to the atmosphere through evaporation is lowest in .
Of the total combined annual precipitation in Europe and Asia together, about flows into the oceans as runoff.
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Official Answer
Dropdown 1: Australia and Oceania
Dropdown 2: 43%
16 Apr 2024, 01:02
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parkhydel
The total volume of annual precipitation that directly returns to the atmosphere through evaporation is lowest in ____
We are asked about the lowest total volume (not percentage - point to note) that returns through evaporation. Australia and Oceania (7080) has the smallest total precipitation and Europe (8290) is next. Rest everyone has much higher. So we just need to compare these two. In both, 65% returns through evaporation.
Since 65% of 7080 will be lower, it means that the total volume that returns through evaporation will be lowest in Australia and Oceania.
ANSWER: Australia and Oceania
Of the total combined annual precipitation in Europe and Asia together, about ____ flows into the oceans as runoff.
Use weighted average to avoid doing any calculation here.
For Europe and Asia, the run off is 35% and 45% respectively. So overall runoff will be between 35 and 45. Since Asia has much more total precipitation that Europe, the average will be greater than 40 and much closer to 45. The only option is 43%
ANSWER: 43%
Check Weighted Averages here:
https://www.youtube.com/watch?v=_GOAU7moZ2Q
04 Nov 2023, 07:15
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For the first part i looked wich one was the smallest (Australia and Oceania) so... 65%*7080+4602 then you can see that othe only one close to that nunmer could be the 65% of europe but 65% of 8290>65% of 7080|
so Australia and Oceania
for the second part of the question, they ask you (Runoff of Europe + Runoff of Asia)/(europe + Asia) = (35%*8290+45%*32300)/(8290+32300)=42.96%
so Australia and Oceania
for the second part of the question, they ask you (Runoff of Europe + Runoff of Asia)/(europe + Asia) = (35%*8290+45%*32300)/(8290+32300)=42.96%
