236: Karl Marx explained the process of class struggle with the help of which one of the following theories?

(a) Dialectical materialism

(b) Empirical liberalism

(c) Existentialism

(d) Darwin's theory of evolution
237: Rigveda, the oldest of the Vedas, chiefly contains:

(a) Collection of hymns to gods

(b) Methods of Vedic yagnas

(c) Early Aryan culture

(d) Origin and works of Hindu gods
238: What is the correct sequence of the following in a heart attack ?

I. Narrowing of the inner orifice of the vessel

II. Plaque from fibrous tissue and high cholesterol

III. Inadequate supply of blood and oxygen

IV. Clots of blood carried into the coronary arteries.

Choose the answer from the codes given below :

Codes:

(a) I, II, III, IV

(b) II, IV, I, III

(c) II, III, I, IV

(d) IV, II, I, III
239: Laterite Soil is found in India in:

(a) Western Ghats

(b) Eastern Ghats

(c) Deccan Plateau

(d) Satpura region in Madhya Pradesh
240: Which one of the following is a monument constructed by Sher Shah?

(a) Kila-Kuhna Mosque at Delhi

(b) Atala Masjid at Jaunpur

(c) Bara Sona Masjid at Gaur

(d) Quwwat-ul-Islam Mosque at Delhi