2. Differentiate between local time and standard time with examples. 3. What is the relationship between time and longitude?What are the things to be considered while calculating local time on the basis of longitude of a place?

4. Give reasons for the following statements.
a. The countries like the USA and Russia have adopted more than one standard time
b. International Date Line is irregular in shape.
C. The sun rises in llam about half an hour earlier than in Kanchanpur.
d. The sun rises in the east and sets in the West.

please answer all the question

I will mark as brainlist to the correct answer​