Identify the land biome on the basis of the given characteristics: 1. Their climates are characterised by high rainfall and temperatures that vary from cold to mild. 2. These forests contain primarily deciduous trees – including maple, oak, hickory and beechwood. 3. Raccoons, opossums, bats and squirrels are found in the trees. Select the correct land biome from the options given below:
- (a)Tropical forest
- (b)Temperate forest
- (c)Boreal forest
- (d)Mediterranean forest
Correct — B, Temperate forest. The described biome has a cold-to-mild temperature range with high rainfall, and its trees are broadleaf deciduous hardwoods — maple, oak, hickory and beech — that shed their leaves each autumn. Its animals, including raccoons, opossums, bats and squirrels, are classic temperate-forest fauna. Taken together, these features define the temperate deciduous forest, found in eastern North America, western Europe and East Asia.
- (a)Tropical forest — Tropical rainforests are hot all year round and dominated by tall broadleaf evergreen trees, not deciduous maple, oak and beech, and they do not have a cold-to-mild temperature range.
- (c)Boreal forest — The boreal forest (taiga) is dominated by evergreen conifers — pine, spruce, fir — under a cold subarctic climate, not by deciduous hardwoods such as maple and oak.
- (d)Mediterranean forest — Mediterranean woodland has hot dry summers and mild wet winters with drought-tolerant evergreen shrubs and trees (chaparral), not the high-rainfall deciduous hardwood forest described here.
A biome is a large community of plants and animals shaped by climate. The temperate deciduous forest occupies the mid-latitudes with warm summers, cold winters and ample rain spread through the year. Its signature broadleaf trees — oak, maple, hickory, beech — drop their leaves in autumn to survive the cold season, and it supports mammals such as deer, squirrels, raccoons and opossums.
The clue that separates this from a tropical forest is the cold-to-mild temperature range, and the named deciduous hardwoods rule out the coniferous boreal forest and the drought-adapted Mediterranean woodland. Deciduous maple and oak plus temperate fauna point squarely to the temperate forest.
- Temperate deciduous forests occur in the mid-latitudes with warm summers, cold winters and rainfall through the year.
- Dominant trees are broadleaf deciduous hardwoods — oak, maple, hickory, beech — that shed leaves in autumn.
- Typical fauna include deer, squirrels, raccoons, opossums, bats and many songbirds.
- By contrast, the boreal forest (taiga) is coniferous, and Mediterranean woodland is evergreen and drought-adapted.
- Confusing the temperate deciduous forest (broadleaf: oak, maple) with the boreal forest (conifers: pine, spruce).
- Reading 'high rainfall' as tropical — the cold-to-mild temperature range and deciduous hardwoods point to the temperate zone.
An identify-the-biome question from climate, trees and animals — deciduous hardwoods plus raccoons and opossums fix it as the temperate forest.
Consider the following ecosystems: 1. Taiga 2. Tropical evergreen 3. Tropical deciduous 4. Tundra The correct sequence in decreasing order of the albedo values of these ecosystems is
- (a) 1, 4, 3, 2
- (b) 4, 1, 2, 3
- (c) 4, 1, 3, 2
- (d) 1, 4, 2, 3
Answer(c) 4, 1, 3, 2 — tundra (snow) reflects most, then taiga, then tropical deciduous, with dark dense tropical evergreen forest reflecting least.
Works with the same family of world biomes/ecosystems — taiga, deciduous and evergreen forests, tundra — that this NDA question asks students to identify by their traits.
- practice — not a real PYQ
Maple, oak and beech trees that shed their leaves in autumn are characteristic of which biome?
- (a)Taiga
- (b)Temperate deciduous forest
- (c)Tropical rainforest
- (d)Tundra
Answer(b) Temperate deciduous forest — broadleaf hardwoods dropping leaves each autumn define this mid-latitude biome.
- practice — not a real PYQ
The taiga or boreal forest biome is dominated by
- (a)broadleaf deciduous trees
- (b)evergreen coniferous trees
- (c)grasses with scattered trees
- (d)drought-adapted cacti
Answer(b) evergreen coniferous trees — pine, spruce and fir dominate the cold subarctic taiga.