Natural Vegetation and Habitats

A closed canopy is a defining characteristic of forest ecosystems, where the crowns of dominant trees form a nearly continuous cover that blocks most sunlight from reaching the forest floor. This dense overhead coverage creates distinct microclimates and light gradients that influence understory vegetation. Grasslands have minimal canopy, tundra has low vegetation, and taiga (boreal forest) has a more open canopy structure compared to tropical or temperate forests.

Mango, Jamun, Peepal, and Neem are characteristic tree species of the tropical dry deciduous forest region. In Uttar Pradesh, these forests are found in the plains and areas with moderate rainfall, distinct from the moist Himalayan forests or thorny scrub forests.

Deodar, Spruce, and Oak trees are characteristic of moist and temperate forest vegetation found at higher altitudes. These species thrive in cooler, moist conditions typical of temperate regions, not in tropical or subtropical forests.

Cactus is a desert plant adapted to arid conditions with water-storing stems, spines instead of leaves, and CAM photosynthesis to minimize water loss. Neem, bamboo, and Ashoka require more water and are typically found in tropical or subtropical regions, not deserts.

The Nilgiri Hills are part of the Western Ghats and characterized by a unique montane ecosystem called 'shola' - which consists of stunted evergreen woodlands interspersed with grasslands. Tropical rainforests occur at lower elevations with higher rainfall, while submontane temperate forests are found at different elevations. Dry evergreen is a coastal vegetation type.

Tropical dense forests are formed due to high rainfall and high temperature. 

A terrace is a piece of sloped plane that has been cut into a series of successively receding flat surfaces or platforms, which resemble steps, for the purposes of more effective farming. This type of landscaping, therefore, is called terracing. It is generally carried out in hills.

This is the correct answer as these are the desert biomes. 

This is the correct answer. Temperate grasslands found in parts of Eurasia and North America are also called steppes.

Mainly porous soil with thin layer of humus and warm, hot climate and 500-1,250 mm rainfall is the feature of tropical savannah grasslands.

Two singular subjects joined by 'and' are plural subjects. Hence, the verb should be plural 'occur'. This option rectifies the error.

Not  only for tiger but for all carnivorous animals. Evergreen forests are the best habitat for them and here their number will be the maximum.

This option contains all the basic requirments of an organism.

Option (3): CDF C à Cactus is found in extremely dry climate. D à Plants in dry climate have thorns and thick leaves. These two combine together and imply that cactus has thorns and thick leaves, which is exactly provided by statement F.

Plenty of rainfall distributed throughout the year, high temperatures throughout summers and length of day and night almost equal throughout the year, are all the characteristics of tropical rainforests. Thus, this is the correct option.