A: increase in personal vehicle use
B: increased human population
C: lack of recycling
D: logging
E: ecotourism
举一反三
- Which of the following can cause metabolic alkalosis? () A: Reduced effective circulation B: lack of chlorine C: Hypokalemia D: An increase in ADH E: Increased aldosterone
- Population movements may trigger conflicts and environmental degradation in destination areas, which ________ can create further health crises and population displacement.
- Which of the following ( ) is not a parameter that affects environmental efficiency A: The quantity of environmental emissions B: Product life span C: Material recycling rate D: Emission ratio
- 5) Which increases faster, water use or population increase? It is ________ that increases faster.
- An analyst does research about factors affecting potential GDP. Which of the following will most likely increase potential GDP（） A: Increase the price level. B: Increase the human capital. C: Decrease money wage rate.
内容
- 0
Which of the following is most likely a population as opposed to a sample?
- 1
Which of the following contributes to an increase in labor productivity? A: increased consumption expenditure B: decreased investment C: increased capital stock D: All of the above contribute to an increase in labor productivity.
- 2
The main factors contributing to the dramatic increase in the human population in the 20th century are A: industrial revolution and modern medicine. B: increased education and new pesticides. C: increased immigration and decreased warfare. D: new agriculture methods and new food crops. E: decreased warfare and increased birth control.
- 3
Which of the following is not true of U.S. agriculture? A: It is the most efficient in the world. B: About a third of the world's food exports come from U.S. farms. C: The use of modern farm machinery and agricultural methods has helped make U.S. farms the most efficient in the world. D: The number of farms in the United States has increased since 1925.
- 4
Which of the following contributed the most to turn Selah into an energetic girl from a dying AIDS patient ?