256: Musical instrument used by Amir Khusro was:
(a) Sitar
(b) Sarod
(c) Tabla
(d) Flute
257: Where does exchange of gases (O2 and CO2) take place in our lungs ?
(a) Alveoli
(b) Bronchi
(c) Pleura
(d) Trachea
258: Consider the following statements made about the sedimentary rocks :
I. Sedimentary rocks are formed at Earth's surface by the hydrological system.
II. The formation of sedimentary rocks involves the weathering of pre-existing rocks.
III. Sedimentary rocks contain fossils.
IV. Sedimentary rocks typically occur in layers.
Which of these statements are correct ?
(a) I and II
(b) I and IV
(c) II, III and IV
(d) I, II, III and IV
259: The terms `Marginal Standing Facility Rate and `Net Demand and Time Liabilities, sometimes appearing in news, are used in relation to
(a) banking operations
(b) communication networking
(c) military strategies
(d) supply and demand of agricultural products
260: The fundamental objective of Panchayati Raj system is to ensure which among the following?
1. People's participation in development
2. Political accountability
3. Democratic decentralization
4. Financial mobilization
Select the correct answer using the code given below.
(a) 1, 2 and 3 only
(b) 2 and 4 only
(c) 1 and 3 only
(d) 1, 2, 3 and 4