How to Master the ielts

Q46 
(fifth paragraph) 
NOT GIVEN. Fluorescent light can cause headaches 
and migraines.
There is no information on fluorescent lighting triggering 
headaches and migraines in the passage. We cannot say whether it is true 
or false based on the information in the passage. (Q46 – trick. ‘can cause 
eye strain’ is not the same as headaches and migraines.)
Q47 
(sixth paragraph) 
TRUE. Traditional bulbs may waste less energy than 
they appear to.
The answer is true because 
‘this heat is not wasted’
.
Q48 
(sixth paragraph) 
carbon footprint
. The answer is 
‘carbon footprint’
because 
‘reduced carbon footprint’
means the same as smaller carbon footprint. 
(Q48 distracter: the phrase ‘Whilst it is true’ distracts the reader into thinking 
the answer must come after this phrase, whereas the answer is found in the 
previous sentence.)
Q49 
(sixth paragraph) 
warm
. The answer is 
warm
because 
‘The bulb helps to 
keep the house warm’
.
Q50 
(sixth paragraph) 
insulated
. The answer is 
insulated
because ‘the savings 
are less than expected in well (insulated) homes’ means the same as 
‘save 
less energy than you might imagine if your home is properly insulated’
, noting 
the links between ‘properly’ and ‘well’, and also ‘save less energy than you 
might imagine’ and ‘the savings are less than expected’.
Q51 
(sixth paragraph) 
cold
. The answer is 
cold
because 
‘cold regions’
in the 
summary means the same as 
cold climate
in the passage.
Q52 
(fifth paragraph) 
mercury
. The answer is 
mercury
because 
‘hazardous for 
health’
in the summary can be linked to 
‘Mercury 
can accumulate in the body 
to
 attack the brain and central nervous system’
.

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READING SECTION ExPANDED ANSWERS