The climate of India is mainly tropical because of the :

Which one of the following States has the broadest continental shelf that extends to more 100 km. from the shore?

Which one of the following States has the broadest continental shelf that extends to more 100 km. from the shore?

If the Earth does not incline on its own axis :

 With reference to atmospheric pressure, consider the following statements :

1. Atmospheric pressure decreases towards poles.
2. High pressure is experienced over continents during winter.
3. All deserts experience low pressure throughout the year.

Which of the statements given above is/are correct?

Which one of the following is a reason for conducting a thorough research at present on mitochondrial DNA?