What two regions have had massive success in reducing their famines in recent decades?
A) Asia and Latin America
B) Australia and North America
C) Europe and the Middle East
D) north Africa and sub-Saharan Africa
E) Russia and the Near Abroad (former Soviet Union)
A
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Only water-soluble toxins can accumulate in body tissues and cells
Indicate whether the statement is true or false
In the process of photosynthesis,
A) potential energy in light is converted to kinetic energy of chemical bonds. B) energy in light is converted to potential energy of chemical bonds. C) potential energy in glucose is use to generate kinetic energy in heat. D) kinetic energy of heat is used to combine the potential energy of oxygen and water.
The daily range of temperatures depends only on the amount of solar radiation received
Indicate whether the statement is true or false
Which of the following is not an acid?
A) H3O+ B) H2CO3 C) HPO42- D) None, they are all acids.