本题目来源于试卷: Energy Choices & Security，类别为 IB环境系统与社会
[单选题]
Figure: Energy consumption r jg.15l lxg y)/aw*yv by sou w9ex hth,1vg0l5*b h:m ,wh oyrce in Brazil
Suggest the most likely reasons for Brazil’s major energy choices.
I. Availability
II. Technological developments
III. Sustainability
A. I only
B. I and II only
C. I and III only
D. I, II and III
参考答案: B
本题详细解析:
Brazil uses mostly hydropower, oil and to a lesser extent 1geqwbb hr g6 ao+j q/g/:*0dpgas.
Statement I is true. Brazil is an oil-producing nation and has one of the largest rivers in the world, namely the Amazon, making it ideal for hydropower. Choosing these sources of energy has largely been a matter of availability.
Statement II is true. Technological developments allowed for the expansion of oil and hydropower as energy sources. As technological developments made other forms of energy generation possible and affordable, Brazil has also started using these.
Gas is partly a by-product of oil exploration, but one that needs more complex infrastructure to transport than oil. Gas is thus an example of an available resource (statement I) that needed technological development (statement II) to make it convenient to use.
Statement III is mostly untrue. Whilst a large percentage of Brazil’s energy consumption is sustainable, it is mostl pw*rqbg:6hjg/ b deao+0/g1q y hydropower. As stated above, the choice for hydropower was made mostly because it was available. There may be an element of sustainability in the choices for some renewables, however they are not major choices, as the question states.
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