English, 27.02.2021 21:00 zackthompson23
As of 2009, about 40 countries were involved in projects to test alternative malaria treatments. Instead of DDT, countries can use pyrenthroid insecticides, which are generally harmless to humans in low doeses, or they can drain standing water where mosquitoes breed. Alternative approaches have been successful in Mexico and Central America. Other areas, however, have seen disturbing increases in malaria when they have stopped using DDT. In South Africa, one mosquito strain was resistant to pyrethroids. When DDT was discontinued, the number of malaria cases soared from 4,117 in 1995 to 64,622 in 2000. Nothing but DDT has proved to be consistently effective in stemming the increased occurence of this disease.
a. To show the number of countries banning DDT as a malaria prevention in 2009
b. To show the number of countries that wanted an effective replacement for DDT in 2009
c. To show the number of countries of countries concerned about increased malaria cases in 2009
d. To show the number of countries that had eradicated (means reduction) malaria in 2009
Answers: 2
English, 21.06.2019 13:50
Which of the following would not appear on a term calendar? a. soccer practice c. 1st soccer gam b. soccer tryouts d. last soccer gam select the best answer from the choices provided
Answers: 2
English, 22.06.2019 02:00
The following question refers to “the philosophy of composition” by edgar allan poe and on writing by stephen king. what is a key difference in the use of details in the texts? poe’s essay is dominated by facts, while king’s memoir is dominated by images and examples. poe references numerous authors and literary works, while king does not reference any other authors or literary works. poe includes a list of all the poems he has written, while king includes a list of all the books he has written. poe’s essay is full of personal details about his wife and children, while king’s memoir is filled with details about his pets.
Answers: 1
As of 2009, about 40 countries were involved in projects to test alternative malaria treatments. Ins...
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