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Paper
2: Question #3 (pt 3)
Marjorie Henry, Contributor
For
many of you, if not all, your school's
internal examinations are to be done
before the external examinations.
Since these will be the last set of
internal examinations, I encourage
you to approach them seriously. Do
thorough preparation for them, for
when you fail to prepare you should
prepare to fail. There are two main
advantages when you prepare well for
the internal examinations. First,
you will also be preparing for the
external examinations and second,
you need to ensure that you have good
grades for your transcript which you
will soon need for entry to the tertiary
institution you choose to attend.
For
the last two lessons, I have been
offering possible answers to the questions
in Section B of the June 2009 CSEC
paper. Today, I will begin to discuss
Question 3, the last question in that
section for Natural Systems.
See
graph
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Figure
2. Temperature-height graph
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You
are given a temperature-height graph
in part (a) of the question. You must
observe the graph closely in order
to find all the answers for the four
short questions that are given below
the graph. Let me point out a few
things to you.
- Note
the labeling of the axes. The vertical
axis represents the height of the
mountain in metres, while the horizontal
axis represents the temperature
in degrees Celsius.
- Note
the gradation on each axis. On the
vertical, 2 cm represent 500 metres.
On the horizontal, 1 cm represents
5oC.
- The
diagonal solid line is indicating
the temperature.
Although
I am giving you the answers below,
try working the questions through
for yourselves before reading the
answers.
(i)
Condensation begins at 1,000m
(ii)
The height of the top of the cloud
is 1,800m
(iii)
The temperature at condensation level
is 20oC
(iv)
The temperature at the top of the
mountain is 15oC.
The
discussion on this question continues
in the next lesson.
Marjorie
Henry is an independent contributor.
Send questions and comments to kerry-ann.hepburn@gleanerjm.com
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