The processing of sewage is also helpful. This is collected in gasholders and burned to produce heat and create electricity. The waste itself is often used for soil enrichment.
41. Modern technology is harmful to the natural environment mainly because
A. of industrial pollutants
B. it has become too expensive
C. it has become too complicated
D. it consumes all natural resources
42. Alternative technology suggests that
A. new ways be found to burn coal, oil and gas
B. solar energy and wind power be considered
C. new ways be found to store radioactive waste
D. the present energy resources be fully used
43. According to this passage, which of the following statements is NOT true? A. Modern technology often conflicts with the natural environment.
13. With the development of modern technology ,the quality of human life can be improved infinitely.
C. Solar energy is widely considered as a new energy.
D. Storage of radioactive waste from nuclear power can he dangerous.
44. From the passage, we can determine that
A. conservation technology is a necessity
B. nuclear power is the energy source of the future
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