•   It has been discussed previously. (2010)

• The taiga is a forest of the cold, subarctic region. The Northern Hemisphere's subarctic region is located just south of the Arctic Circle.
• The taiga is located between temperate forests to the south and tundra to the north.
• Taigas can be found in Alaska, Canada, Scandinavia, and Siberia.
• The largest taiga in the world is found in Russia, where it runs 5,800 kilometres from the Ocean to the Ural Mountains.
• Spruce, pine, and fir trees, as well as other coniferous trees, are commonly found.
• Broad leaves are replaced by needles on coniferous trees, and the seeds are enclosed (protected capsules).
• These trees never lose their needles. Therefore, conifers are also called “evergreens.”
• The soil contains minimal nutrients. Thus, many plants find it challenging to establish roots.
• The ground is covered in mosses, lichens, and mushrooms rather than plants and flowers.

• These forests are commonly found in the Western Ghats' high rainfall regions, island groups of Lakshadweep, Andaman, and Nicobar, as well as the upper reaches of Assam and the coast of Tamil Nadu.
• They grow in regions with a short dry season and more than 200 cm of rainfall.
• The trees rise to great heights of up to 60 metres or higher.
• Trees don't lose their leaves at the same time every year. As a result, these forests appear green all year long.
• Some of the commercially important trees of this forest are ebony, mahogany, rosewood, rubber and cinchona.

●  These are India's most widely spread forests.

●  They are referred to as monsoon forests and are spread over an area that receives 200–70 cm of rainfall annually.

●  The trees lose their leaves during the dry summer.

●  These Forests are further categorized into moist and dry deciduous based on the water resources available.

●  In regions with 200–100 cm of annual rainfall, moist deciduous forests can be found.

○  These forests can be found mainly in the north-eastern states, foothills of the Himalayas, Jharkhand, West Odisha, and Chhattisgarh, as well as on the eastern slopes of the Western Ghats.

○  The common species in this forest is teak. Other important species include bamboo, sal, shisham, sandalwood, khair, kusum, arjun, and mulberry.

●  In regions with rainfall ranging from 100 cm to 70 cm, dry deciduous forests can be found.

○  These forests can be found in the drier regions of the peninsular plateau as well as the plains of Bihar and Uttar Pradesh.

○  There are open areas where teak, sal, peepal, and neem trees grow.

●  Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy, and rainfall is scant.

●  Most of the year, tundra regions are blanketed in snow; however, summer brings bursts of wildflowers.

●  A few species of animals and plants can survive in the cold tundra.