2024
Q90. Which is a characteristic of tropical deciduous forests?
[RPF SI CBT-I (2 Dec 2024, Shift 2)]
(A) Sparse vegetation
(B) Trees with large leaves
(C) Trees shed their leaves seasonally
(D) Dense canopy throughout the year
Answer: (C) Trees shed their leaves seasonally
Explanation: The essential feature of deciduous forests is seasonal leaf shedding, usually during the dry period. India’s tropical deciduous vegetation is also called monsoon forest and is divided into moist and dry deciduous types.
Q89. Which of the following is a species of tropical deciduous forest?
[SSC CGL Tier-I (17 Sep 2024, Shift 3)]
(A) Palms
(B) Mahogany
(C) Teak
(D) Ebony
Answer: (C) Teak
Explanation: Teak is a characteristic hardwood of tropical deciduous forests. It tolerates a pronounced dry season by shedding its leaves. Ebony and mahogany are more commonly associated with high-rainfall evergreen forests, which remain green year-round.
Q88. Ebony, mahogany and rosewood are found in which vegetation?
[RPF SI CBT-I (13 Dec 2024, Shift 1)]
(A) Tropical deciduous forests
(B) Montane forests
(C) Tropical evergreen forests
(D) Mangrove forests
Answer: (C) Tropical evergreen forests
Explanation: Ebony, mahogany and rosewood are standard examples of commercially important trees in tropical evergreen forests. These forests need substantial moisture and possess several canopy layers. They grow in regions such as the Western Ghats and Northeast.
Q87. Which of the following is a dominant tree species of tropical deciduous forests?
[SSC CHSL Tier-I (4 Jul 2024, Shift 4)]
(A) Coconut
(B) Rubber
(C) Teak
(D) Mulberry
Answer: (C) Teak
Explanation: Teak is an important species of Indian tropical deciduous forests and a valuable timber resource. These forests have distinct rainy and dry periods. Coconut is coastal, while rubber grows better in moist tropical conditions.
Q86. Teak, sal, peepal and neem mainly belong to which forests?
[DSSSB Jail Warder (19 Jun 2024, Shift 2)]
(A) Tundra vegetation
(B) Tropical deciduous forests
(C) Coniferous forests
(D) Mangrove forests
Answer: (B) Tropical deciduous forests
Explanation: Teak, sal, peepal and neem are characteristic species in the broad tropical deciduous grouping. The trees experience seasonal water stress and may shed leaves. Conifers dominate colder mountain belts, and mangroves occupy tidal coasts.
Q85. Which natural vegetation predominates in much of northwestern India’s driest areas?
[DSSSB Jail Warder (12 Jun 2024, Shift 2)]
(A) Montane forests
(B) Tropical deciduous forests
(C) Tropical thorn and scrub forests
(D) Tropical evergreen forests
Answer: (C) Tropical thorn and scrub forests
Explanation: Low rainfall in northwestern India restricts plant growth, producing tropical thorn forest and scrub. Drought-tolerant bushes have small leaves, thorns and deep roots. Evergreen forests instead require markedly wetter climatic conditions.
Q84. Which forest type grows in heavy rainfall regions including the Western Ghats, islands and upper Assam?
[DSSSB Jail Warder (12 Jun 2024, Shift 1)]
(A) Tropical evergreen
(B) Mangrove
(C) Tropical deciduous
(D) Montane
Answer: (A) Tropical evergreen
Explanation: High-rainfall regions of the Western Ghats, Assam and island territories support tropical evergreen forests. Their dense, stratified canopy persists because species do not shed leaves simultaneously. Water availability is the key environmental factor.
Q83. Which state among these has natural mangrove forests?
[SSC CHSL Tier-I (5 Jul 2024, Shift 1)]
(A) Andhra Pradesh
(B) Manipur
(C) Telangana
(D) Rajasthan
Answer: (A) Andhra Pradesh
Explanation: Andhra Pradesh’s coastal deltas, especially around the Godavari and Krishna, contain mangrove stands. The other listed states lack comparable marine tidal habitats. Mangroves thrive where sediments accumulate in brackish estuarine conditions.
Q82. Tropical thorn forests and scrub are predominantly associated with which region of India?
[SSC CPO (29 Jun 2024, Shift 3)]
(A) Northeast
(B) Southwest
(C) Northwest
(D) Southeast
Answer: (C) Northwest
Explanation: India’s northwestern region has extensive arid and semiarid tracts that favour thorn vegetation. Trees and shrubs use deep roots, thorns and reduced leaves to conserve water. Rainfall remains too low for dense tropical rainforests.
Q81. Which feature characterizes mangrove vegetation?
[DSSSB Jail Warder (18 Jun 2024, Shift 1)]
(A) Adaptation to saline waters
(B) Adaptation to permanent snow
(C) High-altitude alpine growth
(D) Requirement of freshwater deserts
Answer: (A) Adaptation to saline waters
Explanation: Mangrove species are adapted to saline or brackish water, tidal flooding and oxygen-poor mud. Some possess breathing roots or salt-excluding mechanisms. These special features allow them to occupy coastal sites that many terrestrial trees cannot tolerate.
