3481: Microbial fuel cells are considered a source of sustainable energy, Why ?
1. They use living organisms as catalysts to generate electricity from certain substrates.
2. They use a variety of inorganic materials as substrates.
3. They can be installed in waste water treatment plants to cleanse water and produce electricity.
Which of the Statements given above is/are correct?
(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
3482: Olympics 2000 is to be held in
(a) Johannesberg
(b) Capetown
(c) Rome
(d) Sydney
3483: How did the dynasty of Nizam Shahis of Ahmadnagar come to an end?
(a) Ahmadnagar was annexed into Mughal empire and Husain Shah was consigned to life imprisonment.
(b) Mughal troops destroyed Daulatabad fort and killed Nizam-ul Mulk of Ahmadnagar.
(c) Fateh Khan usurped the throne from Nizam-ul Mulk.
(d) Malik Ambar was defeated in a battle with Mughals in 1631 and the entire royal family was killed by the Mughal troops.
3484: Which one of the following is the objective of National Renewal Fund ?
(a) To safeguard the interests of workers who may be affected by technological upgradation of industry or closure of sick units
(b) To develop the core sector of the economy
(c) For the development of infrastructure such as energy, transport, communications and irrigation
(d) For human resource development such as full literacy, employment, population control, housing and drinking water
3485: Which one of the following layers of the atmosphere is responsible for the deflection of radio waves ?
(a) Troposphere
(b) Stratosphere
(c) Mesosphere
(d) Ionosphere