3. Water on the Earth
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3
28.
Look at the photo and answer the questions.
a) Where is this type of lake found?
b) Where is its source?
c) Where are there many lakes like this in Spain?
29.
Look at the image below and find out about the
formation shown.
a) What it is called?
b) Where are these formations found?
c) How is it formed?
d) What percentage of its mass is above the surface of the
water?
e) What historical disaster was caused by one of these
formations?
On 7th of August, 1966, a summer storm hit the town
of Biescas (Huesca) located in a valley in the Pyrenees.
The Arás torrent, next to
Las Nieves
campsite, increased
its flow rate very quickly as a result of the 160 mm of
rainfall produced by the storm in a very short time. The
flood that was caused pulled masses of rocks and trees
along with it, down the steep slopes and valleys.
In the end, the water destroyed the campsite causing 87
deaths and 183 people were injured in one of the worst
flood disasters in Spain ever.
How inappropriate to call this planet Earth, when it
clearly should be called Ocean.
30.
Copy and complete the sentences in your notebook.
❚
The quantity of water that is carried by a river at a specific
point in its course is called the _______________.
❚
Salt water constitutes ___________ % of the water on
the planet. It is found in ___________ and _________ .
❚
The movements of water in the seas ___________ ,
___________ and ___________ .
❚
Floods can be caused by extreme weather phenomena
such as ___________ and ___________ .
31.
Read the following text about a natural disaster
which had catastrophic consequences. Analyse the
phenomenon and explain how it was caused and
how it could have been avoided.
32.
Read the following quote by Arthur Clarke,
British author of
2001: A Space Odyssey
and write
comments.
33.
Write a paragraph explaining your thoughts on
how we use water and its importance for humans
and for life on Earth.
