QuestionGroup: #71 You and the environment3
Assigned as
Homework
71
Recent reports indicate that the polar ice caps are melting. This melting will cause which of the following?
A
Increase in coastal flooding
B
A drop in atmosphere temperature
C
Increase in carbon dioxide in the atmosphere
D
Increase in inland flooding
Unanswered
Submit
QuestionGroup: #72 Global warming
Assigned as
Homework
72
How does incomplete combustion occur?
A
Incomplete combustion is the slow, lowtemperature, flameless form of combustion, sustained by the heat evolved when oxygen directly attacks the surface of a condensed-phase fuel.
B
Incomplete combustion is a form of oxidation otherwise known as a fire, in which large amounts of heat and light energy are released, which often results in a flame.
C
Incomplete combustion will only occur when there isn't enough oxygen to allow the fuel to react completely to produce carbon dioxide and water.
D
Incomplete combustion, the reactant burns in oxygen, producing a limited number of products.
Unanswered
Submit
QuestionGroup: #73 Global warming 2
Assigned as
Homework
73
Chlorofluorocarbons have been banned due to which of the following?
A
They contribute to ozone depletion which increases global warming.
B
They contribute to ozone depletion which allows more radiation from the sun to hit the earth
C
They directly increase the concentration of carbon dioxide in the atmosphere.
D
They decrease the acidity of the oceans producing a more alkaline ocean
Unanswered
Submit
QuestionGroup: #74 Drought
Assigned as
Homework
74
Which of the following is the correct order of countries with the highest population?
A
USA, China, India
B
China, USA, India
C
China, India, USA
D
India, USA, China
Unanswered
Submit
QuestionGroup: #75 Drought2
Assigned as
Homework
75
Drought and flooding may occur in cycles. The result of flooding is that the water maybe contaminated with Cholera which is a major public safety concern. Which of the following points about Cholera is correct?
A
It is a bacteria that invades the stomach and can cause vomiting by causing the intestinal solution to be a hypotonic solution relative to the cells.
B
Cholera is found only in food and not in water. In flood situations, public sanitation is always maintained so people do not drinking contaminated water.
C
It is a bacteria that invades the intestinal tract and can cause diarrhea by causing the intestinal solution to have a hypertonic solution relative to the cells.
D
It is a virus that invades the stomach and can cause diarrhea by causing the intestinal solution to have a hypotonic solution relative to the cells became a major problem.
