BARU
Ukuran huruf
Lembar kerjaQUIZ 2
Total soal: 15
Worksheet time: 15mins
RECYCLING ALUMINIUM
Aluminium ________ since it was first commercially produced and
has recycled
was recycled
was recycling
has been recycled
this _________ about one-third of global aluminium usage world-wide being the recycled material.
is due to
has caused
has resulted in
is the result of
Recycling makes sense economically, technically and ecologically ________ all aluminium products are worth something at the end of their useful lives.
because
as a result of
The cause of
leads to
________ this, there are two categories of aluminium for recycling : new and old scrap.
As a result of
The cause of
A major factor of
The reason for
New scrap results________ the surplus material that is discarded during the production of aluminium alloys.
in
of
to
from
Whereas aluminium-containing products that have reached the end of their useful lives ________ to what is known as old scrap.
lead
give rise
cause
are due
However, the scrap has to be of a certain quality before it can ________ down,
melt
melted
be melted
have been melted
which ________ scrap being sorted according to alloy type and content prior to that process.
leads to
causes
result from
is because
For example turnings are centrifuged and dried to remove any oil and water which is ________ to be present and then it has to be magnetically separated from any iron.
possibly
probably
likely
definitely
Used drinks cans ________ to remove the interior lacquer coating and the printing inks on the outside. The refiners and remelters contribute significantly to the protection of our environment.
are processed
are processing
be processed
process
The European Standard EN 13920 on aluminium and aluminium scrap, which covers all scrap types, ________ the standard classification since 2003.
has considered
considering
is considered
has been considered
This is ________quality control developments, which have been taking place for many years.
In the future,
the cause of
the result of
a major factor
because
there is a ________possibility that aluminium will be used in fuel-cell-powered cars as researchers have recently discovered that it could probably be used to produce hydrogen fuel efficiently.
highly
strong
very
almost
Innovations like these ________ the demand for aluminum.
will increase
are increased
will have increased
will have been increased
By 2021 the International Aluminum Institute projects that the aluminum industry ________ carbon neutral. There is no doubt that aluminium is a versatile and very important substance.
has become
will have become
will be becoming
is becoming
