Question 1 - 4
Write ONE WORD ONLY for each answer.
American Salt Marshes
The salt content in marshes can be as high as that of the 1.
At different times of the day, there are changes in salinity and in the 2. and warmth of the water.
Animals such as worms and shrimps feed on the 3. that grown the marsh.
Marshland in the US has been used in the past for 4. cultivation.
Question 5 - 8
Choose appropriate options A, B or C.
5.
The speaker says that one result of erecting artificial walls in salt marshes is that
water levels can get too high.
wildlife has less space.
water quality is difficult to control.
6.
Some people have complained about the building of dikes because
access for walkers is reduced
the insect population has increased
the natural beauty of the area is affected
7.
In the 20th century, a large proportion of marshes in America became
salt extraction sites
residential areas
protected insect reserves
8.
There are now laws which help to prevent
the erosion of soil
the building of more walls
the extinction of sea life
Question 9 - 10
Write NO MORE THAN TWO WORDS for each answer.
The Horseshoe Crab
Related to: spider
Most common food: 9.39.......
Time of year when female lays eggs 10.40.......
. . .
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