The optimum temperature for seedling growth in the upper gangetic plains is around:

The plants growing on saline soils are called:

Grazing systems in the northern mountains are:

This is the topmost tree formation in the Himalayas developed between about ________ on northerly aspects and perhaps 150 m. Higher on warmer slopes:

The major factors that make today’s ‘land-use crisis’ a global issue of greatest concern is:

Which of the following is not taken into account in the study of ecology?