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2. What energy source is the most popular nowadays? Why? – Fossil fuel
(coal, oil, peat) combustion provides most of the power generated for
industrial and domestic use because they are abundant and efficient.
3. Why has the fossil fuel combustion achieved notoriety? – Burning of
these fuels has achieved notoriety due to the large volumes of carbon
dioxide (CO
2
) produced, the consequent buildup of this gas in the
atmosphere, and its possible contribution to the greenhouse effect on
the Earth.
4. What trace elements are detected in fossil fuels? – Variable amounts of
inorganic constituents were detected in the ash left after the
combustion process with some emitted in fine combustion products
into the atmosphere.
5. Why are they considered to be harmful elements? – Because they can
impact the soil, water, and biosphere in the vicinity of the power plant
and influence people’s health.
6. What is the impact of nuclear power generation on the environment? –
Accidental leakages and permitted effluent released from nuclear
power plants have impacted the environment. For example, radioactive
iodine moves through the food chain rapidly and causes thyroid cancer.
7. Is geothermal energy really “clean” form of power generation? Prove
it. – No, it isn’t. Many geothermal areas are associated with volcanic
activity and many of the hot springs actively precipitate arsenic,
antimony, mercury, and thallium, whereas some geothermal waters
contain very high concentrations of boron.
8. What ecological problems has hydroelectric power generation led to? –
It has led to problems resulting from flooding of areas where soils have
been inundated; it has been found that fish contain elevated
concentrations of mercury.
Exercise 14. Read the text, suggest the title to it.
Possible titles:
- Perspectives of using (utilizing) oil as a source of energy.
- Problems of Oil utilization today and tomorrow. Etc.
Exercise 15. Answer the questions to the text.
1. What is the difference between the terms “resource” and “reserves”? –
A mineral resource is the entire amount on Earth – sometimes called
the total resource. A reserve is what we can get at now economically,
the portion of the resource that we can extract now at a profit.