Both the reading passage and lecture discuss several hypotheses that blame the decline of the yellow cedars. The reading passage argues that there are three reasons for not supporting ethanol fuel. On the contrary, the lecture refutes each of these points.
First, the author of the passage claims that yellow-cedar decline may be caused by insect parasites, especially the cedar bark beetle. However, the lecture contends that these trees are resistant to insects. So healthy cedars are not suffering from insects.
Secondly, the reading passage states that brown beers sometimes claw at the cedars instead of eating the tree bark with high sugar content. On the other hand, the lecturer mentions that bears are not the main cause of the overall population decline. For example, there is cedars decline in some places like islands where there are not any bears.
In third, the article mentioned that gradual climate changes are the causes of this problem. In contrast, the listening mentions that we expect more cedars decline in higher elevations than lower elevations. Because we expect freezing damage of cedars in higher elevation and weather is cold over there. But more trees are damaged in the warm weather.
Both the reading
passage
and lecture discuss several hypotheses that blame the
decline
of the yellow
cedars
. The reading
passage
argues that there are three reasons for not supporting ethanol fuel.
On the contrary
, the lecture refutes each of these points.
First
, the author of the
passage
claims that yellow-cedar
decline
may
be caused
by insect parasites,
especially
the
cedar
bark beetle.
However
, the lecture contends that these trees are resistant to insects.
So
healthy
cedars
are not suffering from insects.
Secondly
, the reading
passage
states that brown beers
sometimes
claw at the
cedars
instead
of eating the tree bark with high sugar content.
On the other hand
, the lecturer mentions that bears are not the main cause of the
overall
population
decline
.
For example
, there is
cedars
decline
in
some
places like islands where there are not any bears.
In third, the article mentioned that gradual climate
changes
are the causes of this problem.
In contrast
, the listening mentions that we
expect
more
cedars
decline
in higher elevations than lower elevations.
Because
we
expect
freezing
damage of
cedars
in higher elevation and weather is
cold
over there.
But
more trees
are damaged
in the warm weather.