5. It can be inferred from the passage that ______.
A. greetings cards are used on many different occasions
B. there are few choices of birthday cards
C. greetings cards are not very popular in Britain
D. greetings cards are for children only
Passage 2: Read the following passage and choose the correct answer to each of the questions.
Conservation conflicts arise when natural-resource shortages develop in the face of steadily
increasing demands from a growing human population. Controversy frequently surrounds how a
resource should be used, or allocated, and for whom. For example, a river may supply water for
agricultural irrigation, habitat for fish, and water-generated electricity for a factory. Farmers, fishers,
and industry leader vie for unrestricted access to this river, but such freedom could destroy the
resource, and conservation methods are necessary to protect the river for future use.
Conflicts worsen when a natural resource crosses political boundaries. For example, the
headwaters, or source, of a major river may be located in a different country than the country
through which the river flows. There is no guarantee that the river source will be protected to
accommodate resource needs downstream. In addition, the way in which one natural resource is
managed has a direct effect upon other natural resources. Cutting down a forest near a river, for
instance, increases erosion, the wearing away of topsoil, and can lead to flooding. Eroded soil and
silt cloud the river and adversely affect many organisms such as fish and important aquatic plants
that require clean, clear freshwater for survival.
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