626: A state in India has the following characteristics:
1. Its northern part is arid and semi arid.
2. Its central part produces cotton.
3. Cultivation of cash crops is predominant over food crops.
Which one of the following states has all of the above characteristics ?
(a) Tamil Nadu
(b) Gujarat
(c) Andhra Pradesh
(d) Karnataka
627: Match List-I with List-II and select the correct answer using the code given below the lists :
List-I(City) : List-II(River)
A. Bangkok : 1. Irrawaddy
B. Phnom-penh : 2. Mekong
C. Hanoi : 3. Menam (chao Phraya)
D. Yangon : 4. Red River
(A) 3 2 4 1
(B) 4 1 3 2
(C) 3 1 4 2
(D) 4 2 3 1
628: Vinegar is an aqueous solution of
(a) oxalic acid
(b) citric acid
(c) acetic acid
(d) hydrochloric acid
629: Consider the following statements :
1. The Richter scale is a logarithmic scale and so an increase of 1 magnitude unit represents a factor of 10 times in amplitude.
2. Each integer reading of the Richter scale has an energy 100 times that of the previous integer reading.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
630: Among the following commodities imported by India during the year 2001-02, which one was the highest in terms of Rupee value?
(a) Edible oil
(b) Fertilizers
(c) Organic and inorganic chemicals
(d) Pearls, precious and semi-precious stones