Forestry Environment MCQs

Option A: 1.50%

Option B: 1.80%

Option C: 1.90%

Option D: 1.10%

Correct Answer: 1.90% ✔

Option A: Study of single species

Option B: Study of different species

Option C: Both (a) & (b)

Option D: None of these

Correct Answer: Study of different species ✔

Option A: Ecosystem

Option B: Phytogeography

Option C: Ecology

Option D: Phytosociology

Correct Answer: Ecology ✔

Option A: Man

Option B: Temperature

Option C: Soil

Option D: Herbivores

Correct Answer: Soil ✔

Option A: CSIR

Option B: NEERI

Option C: CPHERI

Option D: ICAR

Correct Answer: NEERI ✔

Option A: Organism and environment

Option B: Man and environment

Option C: Soil and water

Option D: Husband and wife

Correct Answer: Organism and environment ✔

Option A: Closely related species growing in the same habitat

Option B: Closely related species growing in the same niche

Option C: Distantly related species growing in different niche

Option D: Distantly related species growing in different habitat

Correct Answer: Closely related species growing in the same habitat ✔

Option A: Haekel

Option B: Odum

Option C: Daubenmire

Option D: Reiter

Correct Answer: Reiter ✔

Option A: Edaphic factor

Option B: Pedogenesis

Option C: Edaphotropism

Option D: Edaphic climax

Correct Answer: Pedogenesis ✔

Option A: Xerophytes

Option B: Hydrophytes

Option C: Mesophytes

Option D: Halophytes

Correct Answer: Xerophytes ✔

Option A: 3-4

Option B: 8-9

Option C: 6-7

Option D: 10-11

Correct Answer: 6-7 ✔

Option A: Oxylophytes

Option B: Psammophytes

Option C: Halophytes

Option D: Tropical trees

Correct Answer: Psammophytes ✔

Option A: Gravitational water

Option B: Capillary water

Option C: Field capacity

Option D: Storage capacity

Correct Answer: Field capacity ✔

Option A: Heliophytes

Option B: Xerophytes

Option C: Halophytes

Option D: Hydrophytes

Correct Answer: Halophytes ✔

Option A: Clayey soil

Option B: Loamy soil

Option C: Silty soil

Option D: Sandy soil

Correct Answer: Clayey soil ✔

Option A: Xerophytes

Option B: Halophytes

Option C: Mesophytes

Option D: Lithophytes

Correct Answer: Xerophytes ✔

Option A: Run off water

Option B: Gravitational water

Option C: Hygroscopic water

Option D: Capillary water

Correct Answer: Capillary water ✔

Option A: Abundant air spaces and air chambers

Option B: Plentiful xylem and sclerenchyma

Option C: Leaves having stomata only on the upper side or none

Option D: Poor development of roots

Correct Answer: Plentiful xylem and sclerenchyma ✔

Option A: Hydrophytes

Option B: Xerophytes

Option C: Mesophytes

Option D: Mangroves

Correct Answer: Mangroves ✔

Option A: In sandy soil

Option B: On gravels

Option C: In loamy soil

Option D: In clay soil

Correct Answer: In clay soil ✔

Option A: On upper surface of the leaf

Option B: Lower surface of the leaf

Option C: Both the surfaces of the leaf

Option D: Nowhere on the plant

Correct Answer: Nowhere on the plant ✔

Option A: Silt

Option B: Clay

Option C: Sub-soil

Option D: Loam

Correct Answer: Silt ✔

Option A: Harmful to the plants growing in the soil

Option B: Useful to plants growing in the soil

Option C: Neither harmful nor useful to plants growing in the soil

Option D: Both harmful as well as useful to plants growing on the soil

Correct Answer: Both harmful as well as useful to plants growing on the soil ✔

Option A: Physically dry soils

Option B: Physiologically dry soils

Option C: Alkaline soils

Option D: Acidic soils

Correct Answer: Physiologically dry soils ✔

Option A: Free floating hydrophyte

Option B: Submerged hydrophyte

Option C: Suspended hydrophyte

Option D: Floating and anchored hydrophyte

Correct Answer: Submerged hydrophyte ✔

Option A: Run away water

Option B: Hygroscopic water

Option C: Capillary water

Option D: Gravitational water

Correct Answer: Hygroscopic water ✔

Option A: Wet habitats

Option B: Warm habitats

Option C: Dry habitats

Option D: Cool habitats

Correct Answer: Dry habitats ✔

Option A: Nelumbium

Option B: Hydrilla

Option C: Mango

Option D: Nerium

Correct Answer: Mango ✔

Option A: Oxylophytes

Option B: Halophytes

Option C: Psychrophytes

Option D: Psammophytes

Correct Answer: Psychrophytes ✔

Option A: Spongy paraenchyma

Option B: Well developed conducting tissue

Option C: Well developed mechanical tissue

Option D: Thick cuticle

Correct Answer: Spongy paraenchyma ✔

Option A: Red algae

Option B: Floating fauna

Option C: Passively floating or drifting flora of micro-organisms

Option D: A layer of organic matter

Correct Answer: Passively floating or drifting flora of micro-organisms ✔

Option A: Euphorbia

Option B: Acacia

Option C: Vallisneria

Option D: Aloe

Correct Answer: Vallisneria ✔

Option A: Air spaces

Option B: Cuticle

Option C: Well developed sclerenchyma

Option D: Well developed vascular tissues

Correct Answer: Air spaces ✔

Option A: Field capacity

Option B: Field capacity less capillary water

Option C: Field capacity less hygroscopic water

Option D: Field capacity plus gravitational water

Correct Answer: Field capacity ✔

Option A: Scales

Option B: Stolons

Option C: Spines

Option D: Phylloclades

Correct Answer: Spines ✔

Option A: Water provides the support and there is no problem for the absorption and conduction of water

Option B: Otherwise the weight of these tissues would drown the plant

Option C: Of the anaerobic conditions created by submergence

Option D: Otherwise translocation of food would have been interrupted

Correct Answer: Water provides the support and there is no problem for the absorption and conduction of water ✔

Option A: Tropical rain forests

Option B: Deciduous forests

Option C: Deserts

Option D: Tundras

Correct Answer: Deserts ✔

Option A: Mangifera and Rhizophora

Option B: Rhizophora and Avicennia

Option C: Rhizophora and Balanophora

Option D: Avicennia and Balanophora

Correct Answer: Rhizophora and Avicennia ✔

Option A: Gravitational water

Option B: Capillary water

Option C: Hygroscopic water

Option D: Capillary water plus hygroscopic water

Correct Answer: Capillary water ✔

Option A: Well developed stomata

Option B: Well developed aerenchyma

Option C: Well developed root system

Option D: Well developed vascular system

Correct Answer: Well developed aerenchyma ✔

Option A: Succulents

Option B: Heterophyllous

Option C: Herbaceous

Option D: Viviparous

Correct Answer: Succulents ✔

Option A: Hygroscopic water

Option B: Gravitational water

Option C: Capillary water

Option D: Hygroscopic and gravitational water

Correct Answer: Capillary water ✔

Option A: Turgidity

Option B: Wilting coefficient

Option C: Field capacity

Option D: Water retaining power of the soil

Correct Answer: Wilting coefficient ✔

Option A: High temperature of soil encourages root growth

Option B: Low temperature at night encourages root growth

Option C: Those plants adapted to produce long system can survive better in desert

Option D: Roots grow in search of water

Correct Answer: Those plants adapted to produce long system can survive better in desert ✔

Option A: They are absolutely devoid of xylem

Option B: They totally lack phloem

Option C: They do not have stomata

Option D: The supporting tissues and xylem are feebly developed

Correct Answer: The supporting tissues and xylem are feebly developed ✔

Option A: There is plenty of water in the soil

Option B: There is too high a concentration of salts for the plants to absorb sufficient water from the soil

Option C: Light available to plant is not sufficient

Option D: The soil is muddy

Correct Answer: There is too high a concentration of salts for the plants to absorb sufficient water from the soil ✔

Option A: Because there is no transpiration

Option B: Because respiration ceases at such a low temperature

Option C: Because no photosynthesis takes place at such a low temperature

Option D: Because of desiccation and mechanical damage to the tissues

Correct Answer: Because of desiccation and mechanical damage to the tissues ✔

Option A: Rhizophora mangle

Option B: Ficus religiosa

Option C: Mangifera indica

Option D: Prosopis specigera

Correct Answer: Rhizophora mangle ✔

Option A: Epiphytes

Option B: Insectivorous plants

Option C: Halophytes

Option D: Mesophytes

Correct Answer: Halophytes ✔

Option A: Niche

Option B: Ecotype

Option C: Edge line

Option D: Ecotone

Correct Answer: Corridor ✔

Option A: 3,900-6,000 m

Option B: 1,900-3,000 m

Option C: 1,000-1,5000 m

Option D: 500-1,000 m

Correct Answer: 3,900-6,000 m ✔

Option A: Monsoon region

Option B: Mid-latitude forests

Option C: Mediterranean region

Option D: Coniferous forests

Correct Answer: Monsoon region ✔

Option A: Savanna – Acacia trees

Option B: Prairie – Epiphytes

Option C: Coniferous forest – Evergreen trees

Option D: Tundra – Permafrost

Correct Answer: B. Prairie – Epiphytes ✔

Option A: Low temperature and excess rain

Option B: High temperature and excess rain

Option C: High temperature and lesser rain

Option D: Wild animals (tigers, lions, bears etc.)

Correct Answer: High temperature and excess rain ✔

Option A: The size of fishes becomes large

Option B: The size of fish population becomes smaller

Option C: The size of fish population is in no way connected with the amount of light falling on a pond

Option D: Mutation will take place in fishes

Correct Answer: The size of fish population becomes smaller ✔

Option A: Above 9,000

Option B: At 6,000

Option C: 6,000-9,000

Option D: At sea level

Correct Answer: Above 9,000 ✔

Option A: Tropical zone

Option B: Gangetic plains

Option C: Mangrove belt

Option D: Alpine zone

Correct Answer: Alpine zone ✔

Option A: Feebly developed root system

Option B: Deep and much branched root system

Option C: Well developed leaves

Option D: III developed vascular system

Correct Answer: Deep and much branched root system ✔

Option A: By man only

Option B: Mainly by climate

Option C: By animals only

Option D: By altitude of a place only

Correct Answer: Mainly by climate ✔

Option A: Only because of high temperature

Option B: Because no seeds fall near the soil

Option C: Because of several environmental factors combining together

Option D: Because the soil is sandy

Correct Answer: Because of several environmental factors combining together ✔

Option A: Dehradun valley

Option B: Kullu valley

Option C: Western ghats

Option D: Sunderbans

Correct Answer: Sunderbans ✔

Option A: The tropical rain forests have preponderance of angiosperms while the temperate ones have preponderance of gymnosperms

Option B: The trees of temperate forests are taller than these of tropical rain forests

Option C: Plants of temperate forests are comparatively more mesophytic

Option D: Tropical forests are comparatively homogenous

Correct Answer: The tropical rain forests have preponderance of angiosperms while the temperate ones have preponderance of gymnosperms ✔

Option A: Acacia

Option B: Aloe

Option C: Euphorbia

Option D: Rhizophora

Correct Answer: Rhizophora ✔

Option A: Producers only

Option B: Consumers only

Option C: Decomposers only

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Potometer

Option B: Porometer

Option C: Colorimeter

Option D: Conductivity meter

Correct Answer: Conductivity meter ✔

Option A: The host

Option B: The parasite

Option C: Of mutual benefit

Option D: Not beneficial

Correct Answer: Of mutual benefit ✔

Option A: Algae and fungi

Option B: Algae and bryophytes

Option C: Algae and roots of gymnosperms

Option D: Fungi and roots of higher plants

Correct Answer: Fungi and roots of higher plants ✔

Option A: Littoral zone

Option B: Limnetic zone

Option C: Both (a) & (b)

Option D: Profundal zone

Correct Answer: Profundal zone ✔

Option A: Photoperiod

Option B: CO2 content to the soil

Option C: Texture and porosity of soil

Option D: Rainfall

Correct Answer: CO2 content to the soil ✔

Option A: Saprophytism

Option B: Symbiosis

Option C: Epiphytism

Option D: Parasitism

Correct Answer: Symbiosis ✔

Option A: Bates

Option B: Darwin

Option C: Lamark

Option D: Darlington

Correct Answer: Bates ✔

Option A: Mutualistic

Option B: Parasitic

Option C: Saprophytic

Option D: Commensal

Correct Answer: Mutualistic ✔

Option A: One is benefitted, other remains unaffected

Option B: One is benefitted, other remains unaffected

Option C: Both are benefitted

Option D: Both are unaffected

Correct Answer: One is benefitted, other remains unaffected ✔

Option A: No roots at all

Option B: Curved roots

Option C: Long roots

Option D: Shallow roots

Correct Answer: Long roots ✔

Option A: Periodic migration

Option B: Long distance migration

Option C: Short distance migration

Option D: None of these

Correct Answer: Periodic migration ✔

Option A: Migration

Option B: Camouflaging

Option C: Batesion mimicry

Option D: Mullerian mimicry

Correct Answer: Camouflaging ✔

Option A: Harmful relationship of two organisms

Option B: A process advantageous to algae

Option C: Living together

Option D: Phenomenon useful to fungi

Correct Answer: Living together ✔

Option A: Mosses

Option B: Liverworts

Option C: Ferns

Option D: Grasses

Correct Answer: Grasses ✔

Option A: Parasitism

Option B: Commensalism

Option C: Saprophytism

Option D: Symbiosis

Correct Answer: Commensalism ✔

Option A: Electrons are bombarded

Option B: Plants are grown in controlled environment

Option C: Mutations are produced plants

Option D: True breeding plants are produced

Correct Answer: Plants are grown in controlled environment ✔

Option A: Reiter

Option B: Haeckel

Option C: Warming

Option D: Hilaire

Correct Answer: Hilaire ✔

Option A: Weathering : sedimentation

Option B: Weathering : pedogenesis

Option C: Pedogenesis : weathering

Option D: Sedimentation : pedogenesis

Correct Answer: Weathering : pedogenesis ✔

Option A: Ecotype

Option B: Ecad

Option C: Ecotone

Option D: Life form

Correct Answer: Ecad ✔

Option A: Algae

Option B: Bacteria

Option C: Fungi

Option D: Lichens

Correct Answer: Lichens ✔

Option A: Kangaroo rat

Option B: Camel

Option C: Desert rat

Option D: All of these

Correct Answer: All of these ✔

Option A: Biome

Option B: Ecotone

Option C: Biological spectrum

Option D: Biological clock

Correct Answer: Ecotone ✔

Option A: Nature of parent material

Option B: Annual rainfall

Option C: Wind velocity

Option D: Mean temperature

Correct Answer: Nature of parent material ✔

Option A: Odum

Option B: Misra

Option C: Warming

Option D: Maeckel

Correct Answer: Odum ✔

Option A: Horizons A1 and A2 only

Option B: Horizon A only

Option C: Horizons A2 and B only

Option D: Horizons A and B

Correct Answer: Horizons A and B ✔

Option A: Lithosphere

Option B: Xerosphere

Option C: Pasmmosphere

Option D: Pedosphere

Correct Answer: Lithosphere ✔

Option A: Horizons A2 and B

Option B: Horizon B only

Option C: Horizon A1

Option D: Horizons B and C

Correct Answer: Horizon A1 ✔

Option A: Oxides of Ca and Na

Option B: Oxides of Ca and K

Option C: Aluminosilicates of Na, K and Ca

Option D: Nitrates of Fe and Al

Correct Answer: Aluminosilicates of Na, K and Ca ✔

Option A: Elton

Option B: Mivart

Option C: Reiter

Option D: Misra

Correct Answer: Mivart ✔

Option A: Carbonation and oxidation

Option B: Hydrolysis and chelation

Option C: Hydrolysis and reduction

Option D: All of these

Correct Answer: All of these ✔

Option A: Ecad

Option B: Ecotone

Option C: Ecotype

Option D: Biome

Correct Answer: Ecotype ✔

Option A: Acids

Option B: Alkalies

Option C: Oxygen

Option D: Carbon dioxide

Correct Answer: Acids ✔

Option A: Statistics

Option B: Radiation

Option C: Embryology

Option D: All of these

Correct Answer: Embryology ✔

Option A: Alluvial

Option B: Colluvial

Option C: Residual

Option D: Eolian

Correct Answer: Alluvial ✔

Option A: A00

Option B: A1

Option C: Both (a) & (b)

Option D: A00 and A1

Correct Answer: Both (a) & (b) ✔

Option A: Atmosphere

Option B: Water

Option C: Gravitational water

Option D: Snow

Correct Answer: Water ✔