All trees/ plants of which of the following sets are abundant in Western Himalayas?

Answer: [C] Pine, Spruce, Silver Fir, Silver Birch

The Western Himalayan region extends from Kashmir to Kumaon. Its temperate zone is rich in forests of chir, pine, other conifers and broad- leaved temperate trees. Higher up, forests of deodar, blue pine, spruce and silver fir occur. The alpine zone extends from the upper limit of  the temperate zone of about 4,750 metres or even higher. The characteristic trees of this zone are high-level silver fir, silver birch and  junipers.

The eastern Himalayan region extends from Sikkim eastwards and embraces Darjeeling, Kurseong and the adjacent tracts. The  temperate zone has forests of oaks, laurels, maples, rhododendrons, alder and birch. Many conifers, junipers and dwarf willows also grow  here. The Assam region comprises the Brahmaputra and the Surma valleys with evergreen forests, occasional thick clumps of bamboos and  tall grasses.

The Indus plain region comprises the plains of Punjab, western Rajasthan and northern Gujarat. It is dry, hot and supports natural  vegetation. The Ganga plain region covers the area which is alluvial plain and is under cultivation for wheat, sugarcane and rice. Only small  areas support forests of widely differing types.

The Deccan region comprises the entire table land of the Indian Peninsula and supports  vegetation of various kinds from shrub jungles to mixed deciduous forests. The Malabar region covers the excessively humid belt of  mountain country parallel to the west coast of the Peninsula. Besides being rich in forest vegetation, this region produces important  commercial crops, such as coconut, betelnut, pepper, coffee, tea, rubber and cashewnut.

The Andaman region abounds in evergreen,  mangrove, beach and diluvial forests. The Himalayan region extending from Kashmir to Arunachal Pradesh through Sikkim, Meghalaya and  Nagaland and the Deccan Peninsula is rich in endemic flora, with a large number of plants which are not found elsewhere.

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