The material discusses the concept of using ethanol as an alternative to gasoline. While the reading claims that ethanol fuel is not a good replacement, the listening challenges this and states that ethanol is a good alternative and all the reasons mention in the reading passages are not convincing.
First, the author points out that using ethanol fuel has no advantages over gasoline in the term of global warming since ethanol releases carbon dioxide into the atmosphere. On the other hand, the professor opposes this and posits that ethanol will not add to global warming. He states that it is true that ethanol fuel releases carbon dioxide, but ethanol is made from plants. The lecturer explains that growing plants to make ethanol will reduce carbon dioxide in the air. The speaker adds that plants usually absorb carbon dioxide as a nutrient to grow, so carbon dioxide will be removed from the air during this process.
Second, the writer cites that producing ethanol will consume plants that should be used to feed farm animals. On the contrary, the professor encounters this and brings up that using ethanol fuel will not reduce the source of food for animals. The lecturer says that ethanol is made from cellulose which is found in the cell wall of the plants, and this part of plants is not eaten by animals.
Third, the reading mentions that ethanol does not have the ability to compete with gasoline on price. Conversely, the lecturer contradicts this and points out that ethanol will be able to compete with gasoline in the future. According to the lecture, if more people start to buy ethanol fuel, the production of it will increase and that will lead to drop its price. The professor points out that if the production of ethanol becomes three times more than its production today, the price of ethanol fuel will drop by forty percent.
The material discusses the concept of using
ethanol
as an alternative to
gasoline
. While the reading claims that
ethanol
fuel
is not a
good
replacement, the listening challenges this and states that
ethanol
is a
good
alternative and all the reasons mention in the reading passages are not convincing.
First
, the author points out that using
ethanol
fuel
has no advantages over
gasoline
in the term of global warming since
ethanol
releases
carbon
dioxide into the atmosphere.
On the other hand
, the professor opposes this and posits that
ethanol
will not
add
to global warming. He states that it is true that
ethanol
fuel
releases
carbon
dioxide,
but
ethanol
is made
from
plants
. The lecturer
explains
that growing
plants
to
make
ethanol
will
reduce
carbon
dioxide in the air. The speaker
adds
that
plants
usually
absorb
carbon
dioxide as a nutrient to grow,
so
carbon
dioxide will
be removed
from the air during this process.
Second, the writer cites that producing
ethanol
will consume
plants
that should be
used
to feed farm animals.
On the contrary
, the professor encounters this and brings up that using
ethanol
fuel
will not
reduce
the source of food for animals. The lecturer says that
ethanol
is made
from cellulose which
is found
in the cell wall of the
plants
, and this part of
plants
is not eaten by animals.
Third, the reading mentions that
ethanol
does not have the ability to compete with
gasoline
on price.
Conversely
, the lecturer contradicts this and points out that
ethanol
will be able to compete with
gasoline
in the future. According to the lecture, if more
people
start
to
buy
ethanol
fuel
, the production of it will increase and that will lead to drop its price. The professor points out that if the production of
ethanol
becomes three times more than its production
today
, the price of
ethanol
fuel
will drop by forty percent.