Thomas Malthus published his "Essay on the Principle of
Population" almost 200 years ago. Ever since then, forecasters
have being warning that worldwide famine was just around the S1________
next corner. The fast-growing population's demand for food,
they warned, would soon exceed their supply, leading to S2________
widespread food shortages and starvation.
But in reality, the world's total grain harvest has risen
steadily over the years. Except for relative isolated trouble spots S3________
like present-day Somalia, and occasional years of good harvests, S4________
the world's food crisis has remained just around the corner.
Most experts believe this can continue even as if the population S5________
doubles by the mid-21st century, although feeding 10 billion
people will not be easy for politics, economic and environmental S6________
reasons. Optimists point to concrete examples of continued
improvements in yield. In Africa, by instance, improved seed, S7________
more fertilizer and advanced growing practices have more than
double corn and wheat yields in an experiment. Elsewhere, rice S8________
experts in the Philippines are producing a plant with few stems S9_________
and more seeds. There is no guarantee that plant breeders can
continue to develop new, higher-yielding crop, but most
researchers see their success to date as reason for hope. S10________
04.6
Culture refers to the social heritage of a people - the
learned patterns for thinking, feeling and acting that characterize
a population or society, include the expression of these S1._______
patterns in material things. Culture is compose of non-material S2._______
culture -abstract creations like values, beliefs, customs
and institutional arrangements and material culture -
physical object like cooking pots, computers and bathtubs. S3._______
In sum,
