Geography, 11.10.2020 15:01 tynitenaire
What has been the most significant cause of the decline in death rate in less developed countries?
A. The discovery and dissemination of the smallpox vaccine
B. The beginning of scientific medicine and formal medical collage
C. The transfer of disease prevention methods to less developed countries
D. The development of methods of containing disease- carrying bacteria
E. The beginning of the single-payer health care system in Western Europe
Answers: 3
Geography, 22.06.2019 21:00
Impressions of tropical swamp plants were observed on rocks in polar regions. the impressions were dark black imprints, which means the fossils are examples of ( 1 ) the fossils tell us that polar regions ( 2 ) ( 1 ) a. carbonization b. mineralization c. trace fossils ( 2 ) a. had tropical plants that can grow in ice b. might have had a diffierent climate in the past c. will have abundent vegitation
Answers: 1
Geography, 23.06.2019 03:10
Wegeners theory of continental drift states that the continents have changed throughout history while the theory of plate tectonics
Answers: 1
What has been the most significant cause of the decline in death rate in less developed countries?...
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