Natural vegetation varies from place to place. Why do evergreen trees grow near equatorial region? Choose the appropriate reason from the following :

Which one of the following is the natural vegetation of South east China ?

Timber vegetation is generally not found in which of the following regions?

Which one of the following countries does not have Tundra vegetation?

Which among the following trees is found at the highest elevation from the sea level?

Which one of the following is not essentially a species of the Himalayan vegetation?