The luxuriant growth of natural vegetation in Tropical rainforest is due to:

I. fertile soil.
II. hot and wet climate throughout the year.
III. intense sunlight for photosynthesis.
IV. Seasonal change to facilitate nutrient absorption.

Select the correct answer using the codes given below.

Mono-culture of commercially viable trees is destroying the unique natural profile of thoughtless exploitation of timber, deforestation vast tracts for palm cultivation, destruction of mangroves illegal logging by tribal, and poaching only compound the problem. Freshwater pockets are fast drying up due to deforestation and destruction of mangroves". The place referred to this quotation is:

Forest areas have been labeled as $1$, $2$, $3$ and $4$ in the rough outline map given:

Among these, those which were threatened in $1997$ by a serious epidemic include. 

Consider the following pairs:

Which of the pairs given above is/are correctly matched? 

Consider the following statements
1. The Taxus tree is naturally found in the Himalayas. 
2. The Taxus tree is listed in the Red Data Book. 
3. A drug called 'taxol' is obtained from the Taxus tree is effective against Parkinson's disease. 
Which of the statements given above is/are correct? 

Consider the following statements
1. The boundaries of a National Park are defined by legislation. 
2. A Biosphere Reserve is declared to conserve a few specific species of flora and fauna. 
3. In a Wildlife Sanctuary, limited biotic interference is permitted. 
Which of the statements given above is/are correct?