Test on Understanding Major Environmental Problems

Question 1: Finding alternative sources for food and wood is a possible solution to deforestation.

A. Ano

B. Ne

Explanation: The study materials state under Deforestation: 'Possible solution: alternative sources must be found for food and wood.'

Question 2: The primary solution presented for reducing general air pollution is to encourage the global adoption of electric vehicles.

A. Ano

B. Ne

Explanation: The study materials state that the possible solution for air pollution is: "laws and regulations must be followed by all countries and must be updated as we get more knowledge." While electric vehicles could reduce some emissions, this specific solution is not mentioned for general air pollution in the provided text.

Question 3: Which of the following gases are identified as contributing to the greenhouse effect, and what solutions are suggested to mitigate its impact, according to the provided study materials?

A. Carbon dioxide and sulfur dioxide; solutions include removing sulfur dioxide from chimneys.

B. Carbon dioxide and methane; solutions include reducing gas emissions and using other energy resources.

C. Ozone and carbon dioxide; solutions include banning dangerous chemicals in aerosols.

D. Methane and nitrogen; solutions include increasing deforestation for agriculture.

Explanation: The study materials state that the greenhouse effect is caused by the accumulation of gases such as carbon dioxide and methane. Possible solutions mentioned include reducing gas emissions and using other resources of energy. Sulfur dioxide is related to acid rain, not directly identified as a greenhouse gas causing the greenhouse effect in the context provided, and ozone depletion is a separate issue with different chemical causes and solutions. Increasing deforestation would worsen, not mitigate, the greenhouse effect.

Question 4: According to the provided study materials, which of the following are stated causes of natural disasters?

A. Long heavy rains or snow melt leading to floods

B. Changes in atmosphere causing hurricanes

C. Movement of lithospheric bords resulting in earthquakes

D. Acid rain damaging lakes and trees

Explanation: The study materials state that floods are caused by long heavy rains or when snow melts. Hurricanes are caused by changes in the atmosphere. Earthquakes are caused by the movement of the lithospheric bords. Acid rain is a problem caused by pollution, not a natural disaster itself, nor a cause of the listed natural disasters.

Question 5: The provided study materials explicitly recommend unplugging electronic devices when not in use to save electricity.

A. Ano

B. Ne

Explanation: The study materials mention 'Turn lights of when nobody is in the room' as a personal action to save electricity, but do not explicitly recommend unplugging electronic devices when not in use.