Who was Thomas Malthus
26. Who was Thomas Malthus?
a. Population biologist who formulated the S-curve from his experiments on paramecia
b. Chairman of the Presidential Commission on World Hunger who warned that international tensions due lo food shortages could led to armed conflict
c. British economist who warned that population growth will always outstrip food supply
d. Research chemist whose work led to the development of oral contraceptives
e. The ‘Father of the Green Revolution’
27. What is considered to represent the single most frequent cause of lead poisoning among American children?
a. eating vegetables grown in lead-contaminated soil
b. eating lead-contaminated seafood
c. swallowing paint chips or paint dust
d. drinking water from lead-containing plumbing system
e. inha1ation of emissions from city incinerators
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