Which of the following statements is/are correct?

1. District Collector directs and supervises the revenue department of the district
2. District Superintendent of Police grants licences for arms and explosives in the district

Select the correct answer using the codes given below :

Among the following states, which one is most urbanized?

Concept of "Zero Hour" in Indian parliamentary process means

Which of the following countries has Black Sea on one side and Mediterranean Sea on other side?:

When solar radiation impinges on a snow surface, then :

In the Parliamentary form of governance, the Executive is :