716: 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
717: When the Portuguese arrived in India, the foreigners whom they encountered as trade rivals were the

(a) Persians

(b) Arabs

(c) Dutch

(d) English
718: Which of the following would lead to malnutrition ?

I. Overnutrition
II. Undernutrition
III. Imbalanced nutrition.

Select the correct answer by using the codes gives below :

(a) II
(b) II and III
(c) I and III
(d) I, II and III
719: Which of the following fertilisers leaves acidic residue?

(a) Ammonium phosphate

(b) Ammonium sulphate

(c) Urea

(d) Sulphate of potash
720: Consider the following pairs

Glacier : River

1. Bandarpunch : Yamuna
2. Bara Shigri : Chenab
3. Milam : Mandakini
4. Siachen : Nubra
5. Zemu : Manas

Which of the pairs correctly matched?

(a) 1, 2 and 4

(b) 1, 3 and 4

(c) 2 and 5

(d) 3 and 5