Questions 1-10 Complete the table below. Write one word and / or a number

D
was Christie's own favourite from among her books for good reasons. 
E
is different from all of her other books. 
F
introduced one of her most famous and most often copied characters. 
Exam
Practice
Test
5
30
www.ztcprep.com

---

READING PASSAGE-1 
You should spend about 20 minutes on 
Questions 1-13,
 which are based on Reading Passage 1 below. 
E
ARTH
’
S LAKES ARE UNDER TH
REAT
 
Lake Poopo used to be Bolivia’s second largest lake. Situated in the 
Altiplano Mountains at an altitude of around 3,700m, the lake in winter 
would cover an area of some 2,700 square kilometres as it was fed by 
swollen rivers. With very little rainfall during summer, this reduced to 
around 1,000, still a remarkable size. This was the pattern in previous 
centuries, but in December 2015, satellites confirmed the reports of local 
people that the lake had gone. While scientists had suspected that Poopo 
would eventually run dry, they didn’t expect that this would occur for at 
least another thousand years. The local mining industry had already 
contributed to the pollution of the lake, but scientists believe global 
warming, drought and irrigation projects are all responsible for its 
disappearance. Today the consequences of Lake Poopo’s disappearance 
are dramatic; many people who lived in the villages around it have left, 
since there are no more fish to be caught. Environmentalists also point to 
the fact that the lake had been the stopover point for thousands of birds 
as they migrated to other regions. Their numbers will certainly fall now 
the lake has gone. 
Lake Poopo is not the only vast are of water to have disappeared. 
The Aral Sea in Central Asia was once the world’s fourth largest lake but 
then it began to shrink in the 1960s. As a shallow lake, it depended on 
rivers to keep its level up. But then water from these rivers was diverted 
for irrigation purposes. Rice is a crop that needs huge quantities of water 
to survive in desert areas. Fields planted with cotton also require a 
regular supply. Now thee water level is so low that fishing has stopped 
altogether. And it is not just the immediate are that is affected. Because 
the floor of the lake is now exposed, the salt that lies there is often carried 
by the wind across a radius of 300 kilometres. This impacts on 
agriculture as it damages growing plants and is absorbed by the soil. 
For some lakes, the biggest threat is form climate change. On 
average, the surface water of the world’s lakes has gone up in 
temperature by 0.34
o
C every ten years since 1985. Lake Tanganyika in 
East Africa is a lake where this trend has been observed, although it is by 
no means the most extreme example. This would be Lake Fracksjön in 
Sweden, where an increase of 1.35
o
C per decade has been observed – a 
figure which is estimated to rise. For Lake Tanganyika, however, the 
consequences have been severe. Warming has disrupted its ecosystem, 
and fish numbers have dropped sharply. In turn, this decline in fish 
stocks has impacted on families living in villages and towns around the 
lake, since they have no other source of protein. Furthermore, around 
100,000 people depend on the fisheries established around the Lake 
Tanganyika. These companies provide them with regular employment, 
without which communities will not survive.
In Iran, Lake Urmia’s waters have also been affected by unusually 
hot summers, but dams and irrigation projects have also played a part. In 
the past, people admired its beautiful green-blue colour. However, the 
water now has a red tint. The reason for this is that bacteria quickly 
multiply in the warm waters of a shallow lake. Now local communities are 
understandably concerned about the future. One of their concerns is that 
Lake Urmia is no longer seen as a place where people can bathe to 
improve their health. As a result, in the last decade, there has been a 
downturn in tourism in the area, an industry many people depended on. 
In some cases, it can be a challenge for scientist to predict 
outcomes for a lake or to recognise the factors that threaten it. Take, for 
example, Lake Waiau in Hawaii, a lake that was used in healing rituals by 
native Hawaiians. It is a fairly small lake, approximately 100m across, 
with some variation as the water level rises and falls. However, in early 
2010, the lake began to decrease in size. By September 2013, it could only 
be described as a pond. The cause of the lake’s decline has not yet been 
established, but drought is among the suspects. Then there is Scott Lake 
in central Florida. In June 2006 a massive sinkhole opened up beneath the 
lake – acting like a plug hole in a bath. It only took two weeks for the 
water to drain away. Local residents called meetings to decide what 
action to take, but in the end, nature took care of the problem. Clay, sand 
and other fine material plugged the hole and the lake started to fill with 
water again. Nevertheless, as geologists point out, sinkholes can occur 
with some frequency in Florida so there is a chance that Scott Lake will 
drain away again.