The reading states that sometimes ice that falls from clouds instead of rain and snow, called hail, can harm crops and agriculture. It describes that there is a method called cloud seeding which turns hail into harmless snow or rain and provides three methods to project cloud seeding. However, the professor opposes this argument and refutes each of the points made in the lecture.
First, the reading claims that there were some laboratory experiments in which they added silver iodide to cold water and they observed that light snow or even rain was made instead of hail. However, the lecturer states that silver iodide was added to water under laboratory conditions and it is not the same as a real situation. He mentions that if they add silver iodide to clouds in the area it will prevent all kinds of precipitations such as rain and snow and not just hail. Thus this will cause an extreme drought in the region and will harm crops in another way.
second, the passage argues that cloud seeding in some Asian countries had successful results in the urban region, so, it will be effective in the united state as well. The professor disagrees with this argument by explaining that in the Asian urban areas, pollution makes a favorable condition for cloud seeding but it cannot repeat in the United State's farming areas which are free of pollution and do not have the same condition as Asia.
Third, the reading states that in some central areas of the United States cloud seeding showed successful results in protecting seeds compared to the other years. The professor refuses this Idea. He argues that hail damage reduced not only in the central areas but also in some other areas like north and south which cloud seeding was not projected. Therefore, it was a natural climate condition that seeds were protected from hail and it was not related to cloud seeding.
The reading
states
that
sometimes
ice that falls from
clouds
instead
of
rain
and
snow
, called
hail
, can harm crops and agriculture. It
describes
that there is a method called
cloud
seeding which turns
hail
into harmless
snow
or
rain
and provides three methods to project
cloud
seeding.
However
, the professor opposes this argument and refutes each of the points made in the lecture.
First
, the reading claims that there were
some
laboratory experiments in which they
added
silver iodide to
cold
water and
they observed that light
snow
or even
rain
was made
instead
of
hail
.
However
, the lecturer
states
that silver iodide was
added
to water under laboratory conditions and it is not the same as a real situation. He mentions that if they
add
silver iodide to
clouds
in the
area
it will
prevent
all kinds of precipitations such as
rain
and
snow
and not
just
hail
.
Thus
this will cause an extreme drought in the region and will harm crops in another way.
second
, the passage argues that
cloud
seeding in
some
Asian countries had successful results in the urban region,
so
, it will be effective in the united
state
as well
. The professor disagrees with this argument by explaining that in the Asian urban
areas
, pollution
makes
a favorable
condition
for
cloud
seeding
but
it cannot repeat in the United State's farming
areas
which are free of pollution and do not have the same
condition
as Asia.
Third, the reading
states
that in
some
central
areas
of the United
States
cloud
seeding
showed
successful results in protecting seeds compared to the other years. The professor refuses this
Idea
. He argues that
hail
damage
reduced
not
only
in the central
areas
but
also
in
some
other
areas
like north and south which
cloud
seeding was not projected.
Therefore
, it was a natural climate
condition
that seeds
were protected
from
hail
and it was not related to
cloud
seeding.