How is the latitudinal spread of India advantageous to her? - Geography

How is the latitudinal spread of India advantageous to her?

Short Note

There are three major advantages of latitudinal extent-

Tropic of cancer (23 1/2°) - It divides India into 2 parts. The southern part is in the tropical zone while the northern part is in the temperate zone. Therefore biodiversity in India is exceptional.
It also brings climatic diversity in India which has many advantages.
As we move from Kanyakumari to Jammu and Kashmir duration of the day and night decreases by more than 4 1/2 hours.
We have places of all climates. It makes India a subcontinent.

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Introduction to India - Location

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Chapter 1 India — Location
Exercises | Q 2. (iii) | Page 6

Which one of the following latitudinal extent is relevant for the extent of India’s area?

Which one of the following longitudes is the standard meridian for India?

Does India need to have more than one standard time? If yes, why do you think so?

While the sun rises earlier in the east, say Nagaland, and also sets earlier, how do the watches at Kohima and New Delhi show the same time?

Which one of the following longitudes is the standard meridian for India?