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Question 6
Total Marks [23]
Students summarise the extract below.
6.1 Summarise in not more than 120 words, describing the life in deserts.
As what geographers have estimated, about twenty percent of the earth's surface is occupied by
deserts. A majority of us view deserts as one unique kind of landscape -- areas with little or no
rainfalls.
In actual fact, there are differences between the deserts, though in varying degrees. While it is
common for laymen like us to see deserts as rocky or covered with gravel or pebbles, there are
some where large sand dunes inhabit. Despite the fact that rainfall is minimal, temperatures do
change in deserts, ranging from seasonal ones to daily changes where extreme hotness and
coldness are experienced in the day and night.
Unfavourable conditions in the deserts, especially the lack of water, have discouraged many living
things from inhabiting these landscapes. Nevertheless, there are exceptionally surviving ones
which through their superb tactics, have managed to live through and are still going strong. One
such kind is the specialist annual plants which overcome seasonal temperature changes with
their extremely short, active life cycles. In events of sudden rain, the plant seeds pullulate .and
grow very quickly to make full use of the rain water. Their flowers bloom and set seeds that ripen
quickly in the hot sun too. Once the water runs dry, the mother plant dies, leaving behind the
drought-resistant seeds, waiting patiently for the next rainy season to arrive.
The Cacti, a native in American deserts, adapts to the dry surroundings by having unique body
structures. The plant has swollen stems to help store water that carries it through months. By
having sharp pines instead of leaves, water loss through respiration is minimized. Besides, these
pointed pines also help the plant ward off grazing animals, thus enhancing its survival period.
Besides plants, there are also animals with distinct surviving tactics in deserts too. For instance,
Skinks (desert lizards) metabolize stored fats in their bulbous tails, producing water to