1886: The principal cause of soil damage in Punjab and Haryana is:

(a) Salinity and water-logging

(b) Deforestation

(c) Ravine erosion

(d) Overgrazing
1887: In terms of economy, the visit by foreign nationals to witness the XIX Common Wealth Games in India amounted to

(a) Imports
(b) Exports
(c) Consumption
(d) Production
1888: Consider the following statements:

1. The Headquarters of the International Organization for Standardization are located in Rome.

2. ISO 9000 related to the quality management system and standards.

3. ISO 14000 related to environmental management system standards.

Which of the following statements given above is/are correct?

(a) 2 and 3
(b) Only 3
(c) 1, 2 and 3
(d) None
1889: Which one of the following dynasties was ruling over North India at the time of Alexander's invasion ?

(a) Nanda

(b) Maurya

(c) Sunga

(d) Kanva
1890: Assertion (A): Muhammad bin Tughlaq issued a new gold coin which was called Dinar by Ibn Batutah.

Reason (R) : Muhammad bin Tughlaq wanted to issue token currency in gold coins to Promote trade with West Asian and North African countries.

(a) Both A and R are individually true and R is the correct explanation of A

(b) Both A and R are individually true but R is not the correct explanation of A

(c) A is true but R is false

(d) A is false but R is true