Exercise 2.
Non-polluting photovoltaic cells – безвредные фотоэлектрические частицы
Turbine – турбина
Abundant – богатый(обильный)
Double-digit growth – двукратный рост
Purchase  - сделка(покупка)
Due to – «из-за»
Nuclear-generated radioactive waste – ядерные радиоктивные отходы
Voters pressure – давление избирателей
Photovoltaic - фотоэлектрический
Burst – выброс  
Supervision – пристальное внимание 
Underdeveloped - недоразвитый
Persistent sunshine – вечное солнце
Exercise 3.
Солнечные батареи – solar power
Колоссальный термоядерный реактор – colossal fusion 
Неограниченный природный ресурс – unlimited natural resource 
Корпоративный акционер – corporate shareholder 
Коммунальные услуги - utilities
Функционировать безопасно и спокойно  - function safely and calmy
Исчезнуть – fade away.
Exercise 5.
The text under consideration is entitled – SOLAR ENERGY.
The text is devoted to solar energy and it’s benefits for people.
The text begins with the story about sun and how beneficial it is to use solar energy.
The author touches upon the ultimate system, the cheapness of solar energy and the history of science devoted to the study of the sun and its energy.
The author introduces the notions of solar energy, solar power, photovoltaic, persistent sunshine, burst, nuclear-generated radioactive waste, non-polluting photovoltaic cells and defines them.
The text is concluded by summarizing the benefits and indispensability of solar energy.