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PSAT Reading Diagnostic Videos 21 videos
PSAT 1.1 Reading Diagnostic. The main purpose of the first two paragraphs is to...what?
PSAT 1.3 Reading Diagnostic. The author mentions the navigational technique called "equal altitudes" in the third paragraph to ...what?
PSAT 1.4 Reading Diagnostic. In the fourth paragraph, the author checks his chronometer against the timepieces of other ships in order to...what?
Polar Bear Populations 177 Views
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Description:
PSAT 1.5 Reading Narrative Walkthrough. It can reasonably be inferred from the passage and graphic that polar bear population increased during which of the following periods?
Transcript
- 00:00
Thank you We sneak and here's your shmoop du jour
- 00:05
brought to you by sea ice Fortunately you don't need
- 00:08
to bother learning what that is because well it probably
- 00:11
won't be a thing in twenty years way We're just
- 00:14
getting chill Check out this passage and felling after if
Full Transcript
- 00:17
only marivan in the new polar bear study scientists study
- 00:20
confirmed the hybridization entry of government you nevada in norway
- 00:25
and their chart hands death Okay it can reasonably be
- 00:29
inferred from the passage in graphic that polar bear population
- 00:32
increased during which of the following periods and hear the
- 00:35
potential answers all right about a bunch of dates right
- 00:37
there Approximate dates Ah yes this would be referring to
- 00:41
the great polar bear migration from europe When the famed
- 00:44
polar bear explorer ferdinand mammalian happened upon the north pole
- 00:49
and claimed it in the name of oh they didn't
- 00:52
migrate there from anywhere else Then how is there any
- 00:56
increase in pop You all right Well we're with you
- 00:59
Okay This is actually a tricky one We're asked refer
- 01:02
to both the passage and the graphic to determine what
- 01:05
time period featured the greatest spike in polar bear population
- 01:09
Well why can't we just look at the graphic Because
- 01:11
this graph isn't measuring polar bear population it's measuring sea
- 01:15
ice cover Uh sneaky So what we'll need to do
- 01:18
then is look at the passage first and see if
- 01:20
we can find some relationship between sea ice cover and
- 01:23
polar bear population Hey there hold the elevator Check out
- 01:27
the tail end of paragraph two Scientists also found that
- 01:31
polar bear populations expanded and brown bear populations contracted in
- 01:34
periods with mohr ice Well that's what We wanted to
- 01:37
know more ice equals more polar bears Okay now we
- 01:42
can take a look at the graphics well option They
- 01:44
would have us believe that population soared from eighty three
- 01:47
to eighty six Yet if we take a look at
- 01:49
the graph and find those points well now looks like
- 01:51
the sea ice cover goes down over that period of
- 01:54
time Meaning so does the number of polar bears option
- 01:56
b eighty eight to ninety Same deal an option d
- 01:59
o c so seven Yikes Hope these guys are good
- 02:02
swimmers Option c the period of time from ninety four
- 02:05
ninety five is the only one where the line seems
- 02:08
To be trending upward on the graphic hitting its high
- 02:10
point in ninety five with more sea ice cover we
- 02:14
can assume there were also more polar bears per the
- 02:16
passage so we can confidently select option c is our
- 02:20
final answer And hey there mr polar bear Sorry about
- 02:22
teasing you early about your melting homeland We realized Now 00:02:25.95 --> [endTime] that joke was pretty yet cold Oh
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