Our Science teacher told us
about the disease. which. us
Caused Jay. the deficiency of vitamin c and due to which wounds take longer time to heel and bellding of gumes occur name of this disease?
Answers
Answer:
Explanation:
Historic, archived document
Do not assume content reflects current
scientific knowledge, policies, or practices.
World Agricultural
Re
FOR JANUARY 5, 1948
Television debut
O. E. BAKER, professor of geography
., at University of Maryland, recently pub-
lished a stimulating article on this gen-
•- *<?ral subject in "Maryland," the univer-
sity's alumni publication, edited by
r-i Reuben Brigham's son, David L. Dr.
Baker estimates that it would be possible
- to increase the world's crop production
^ at least 75 percent by putting to crop use
all land that could and should be cul-
. , tivated, and by such application of scien-
tific knowledge to agricultural technol-
ogy as would, increase acre yields 40 or
50 percent.
* He remarks that, whereas Canada and
the United States combined have about
3V2 acres of cropland per person, of which
3 are required for domestic consumption,
1 the U. S. S. R. has 2 acres, Europe, ex-
cluding U. S. S. R., only about 1 acre,
China a half- acre per person — which,
' however, often produces two crops an-
nually — and Japan but a quarter-acre,
* which is farmed most intensively. The
Orient adjusts by using little meat, few
' eggs, and practically no milk, on the well-
known theory that it requires 3 or 4 times
'as much land to produce the same num-
ber of calories from animals as man
would require using cereals directly.
Dr. Baker also reminds us that if we
could live on sugar alone, a quarter-acre
>fof sugarcane or sugar beets would suffice
us each for calories, or two-thirds of an
"*acre of corn or of potatoes. But when
corn is transformed into pork and lard,
" fully 3 acres are needed to provide ade-
quate calories per person, whereas IMj
acres of wheat would do the job, if con-
,.. sumed directly.
Dr. Baker sees twice as many people
i in the Orient a century hence as today, a
half billion more in U. S. S. R. and
«r satellites, but far fewer in the remainder
of Europe, and only 100 million in the
* U. S.
(The Editor of USD A has a few copies of
'' this article if you want to write in for one.)
. . 771163° — 47
Answer:
night blindness is the correct answer
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