Forestry Environment MCQs

Option A: Atmosphere and lithosphere

Option B: Lithosphere and biosphere

Option C: Atmosphere and hydrosphere

Option D: All of these

Correct Answer: Atmosphere and lithosphere ✔

Option A: Horizon-B

Option B: Horizon-A

Option C: Horizon-O

Option D: Horizon-C

Correct Answer: Horizon-B ✔

Option A: Hypotrophic

Option B: Eutrophic

Option C: Heterotrophic

Option D: Oligotrophic

Correct Answer: Oligotrophic ✔

Option A: Weathering

Option B: Gleization

Option C: Laterization

Option D: Pedogenesis

Correct Answer: Weathering ✔

Option A: Eolian

Option B: Aerial

Option C: Residual

Option D: Colluvial

Correct Answer: Eolian ✔

Option A: Gleization

Option B: Mineralization

Option C: Laterization

Option D: Podsolization

Correct Answer: Gleization ✔

Option A: 3.8-5.4

Option B: 6.5-7.5

Option C: 4.5-8.5`

Option D: 5.5-6.5

Correct Answer: 5.5-6.5 ✔

Option A: Coarse sand

Option B: Silt

Option C: Fine sand

Option D: Clay

Correct Answer: Fine sand ✔

Option A: Blocks

Option B: Clods

Option C: Peds

Option D: Plates

Correct Answer: Peds ✔

Option A: Gravitational water

Option B: Capillary water

Option C: Run off water

Option D: Water vapour

Correct Answer: Capillary water ✔

Option A: Fully decomposed organic matter only

Option B: Party decomposed organic matter + CO2

Option C: Minerals and fully decomposed organic matter

Option D: Partly decomposed organic matter + mineral + water

Correct Answer: Minerals and fully decomposed organic matter ✔

Option A: Marsilea

Option B: Utricularia

Option C: Vallisneria

Option D: Monochoria

Correct Answer: Vallisneria ✔

Option A: Tpha

Option B: Trapa

Option C: Potamogeton

Option D: Ceratophyllum

Correct Answer: Ceratophyllum ✔

Option A: Cation storage capacity

Option B: Reversible bending of cations

Option C: Excess of monovalent cations

Option D: Excess of polyvalent cations

Correct Answer: Reversible bending of cations ✔

Option A: Horizon-C

Option B: Horizon-A

Option C: Horizon-R

Option D: Horizon-B

Correct Answer: Horizon-C ✔

Option A: Pore frequency ratio

Option B: Pore density ration

Option C: Pore abundance ratio

Option D: Pore space ratio

Correct Answer: Pore space ratio ✔

Option A: Geology

Option B: Pedology

Option C: Both (a) & (b)

Option D: None of these

Correct Answer: Pedology ✔

Option A: There is no soil air

Option B: Water retaining capacity is high

Option C: Pore space is narrow

Option D: Pore frequency is low

Correct Answer: Pore frequency is low ✔

Option A: Horizon-B

Option B: Horizon-A

Option C: Horizon-C

Option D: All of these

Correct Answer: Horizon-A ✔

Option A: H+

Option B: AI+3

Option C: Both (a) & (b)

Option D: H+ and Zn+2

Correct Answer: Both (a) & (b) ✔

Option A: Gravitational water

Option B: Capillary water

Option C: Water holding capacity

Option D: Field capacity

Correct Answer: Field capacity ✔

Option A: Nitrogen

Option B: Oxygen

Option C: Carbon

Option D: Hydrogen

Correct Answer: Carbon ✔

Option A: Mull

Option B: Mor

Option C: Peat

Option D: Muck

Correct Answer: Mor ✔

Option A: Free floating

Option B: Rooted emergent

Option C: Submerged floating

Option D: None of these

Correct Answer: Rooted emergent ✔

Option A: Rats and moles

Option B: Bacteria and fungi

Option C: Termites and nematodes

Option D: Algae and actinomycetes

Correct Answer: Termites and nematodes ✔

Option A: Available water

Option B: Unavailable water

Option C: Run off water

Option D: Total atmospheric precipitation

Correct Answer: Unavailable water ✔

Option A: Prosopis

Option B: Tephrosia

Option C: Nerium

Option D: Aloe

Correct Answer: Aloe ✔

Option A: Holard – Chesard = Ecard

Option B: Chesard – Ecard = Holard

Option C: Holard + Ecard = Chesard

Option D: Ecard – Chesard = Holard

Correct Answer: A. Holard – Chesard = Ecard ✔

Option A: Pelophilous

Option B: Heliophilous

Option C: Psammophilous

Option D: Lithophilous

Correct Answer: Pelophilous ✔

Option A: Halophytes

Option B: Heliophytes

Option C: Halophytes

Option D: Sciophytes

Correct Answer: Halophytes ✔

Option A: Suaeda fruticosa

Option B: Cressa cretica

Option C: Salsola foetide

Option D: All of these

Correct Answer: All of these ✔

Option A: Oxylophytes

Option B: Lithophytes

Option C: Eremophytes

Option D: Psilophytes

Correct Answer: Eremophytes ✔

Option A: Psychrophytes

Option B: Lithophytes

Option C: Halophytes

Option D: Sciophytes

Correct Answer: Lithophytes ✔

Option A: Halophyte

Option B: Oxylophyte

Option C: Psychrophyte

Option D: Psammophyte

Correct Answer: Psychrophyte ✔

Option A: Mircophylly

Option B: Pneumatophores and vivipary

Option C: Absence of aerenchyma

Option D: Poor water storage

Correct Answer: Pneumatophores and vivipary ✔

Option A: Potamogeton

Option B: Najas

Option C: Ranunculus

Option D: None of these

Correct Answer: Potamogeton ✔

Option A: Uniform mesophyll

Option B: Absence of cuticle

Option C: Well developed root-shoot systems

Option D: All of these

Correct Answer: Well developed root-shoot systems ✔

Option A: Megatherms

Option B: Hekistotherms

Option C: Microtherms

Option D: Mesotherms

Correct Answer: Mesotherms ✔

Option A: Nymphaea, Poamogeton, Victoria

Option B: Utricularia, Typha, Aponogeton

Option C: Lemna, Spirodela, Azolla

Option D: Ranunculus, Vallisneria, Hydrilla

Correct Answer: Lemna, Spirodela, Azolla ✔

Option A: Calotropis procera

Option B: Zizyphis jujuba

Option C: Acacia nilotica

Option D: Capparis aphylla

Correct Answer: Capparis aphylla ✔

Option A: Equally developed palisade and spongy parenchyma

Option B: Multistratose epidermis

Option C: Non-functional stomata

Option D: None of these

Correct Answer: Multistratose epidermis ✔

Option A: 4.50%

Option B: 9%

Option C: 8.25%

Option D: 16.50%

Correct Answer: 9% ✔

Option A: Between 0.1 – 0.5%

Option B: Between 0.01 – 0.1%

Option C: Above 1.0%

Option D: Between 0.5 – 1.0%

Correct Answer: Above 1.0% ✔

Option A: Eremophytes

Option B: Oxylophytes

Option C: Psilophytes

Option D: Psammophytes

Correct Answer: Psammophytes ✔

Option A: Acanthus ilicifolius

Option B: Avicennia offcinalis

Option C: Ceriops roxburghiana

Option D: All of these

Correct Answer: All of these ✔

Option A: Sagittaria

Option B: Typha

Option C: Najas

Option D: Spirodela

Correct Answer: Spirodela ✔

Option A: Tropical

Option B: Sub-tropical

Option C: Alpine

Option D: Temperate

Correct Answer: Temperate ✔

Option A: Capparis aphylla

Option B: Solanum xanthocarpum

Option C: Euphorbia milli

Option D: All of these

Correct Answer: Capparis aphylla ✔

Option A: Tropical

Option B: Sub-tropical

Option C: Temperate

Option D: Alpine

Correct Answer: Temperate ✔

Option A: 5 meters only

Option B: 20 meters only

Option C: 50 meters

Option D: 80-100 meters

Correct Answer: 20 meters only ✔

Option A: Mesotherms

Option B: Megatherms

Option C: Microtherms

Option D: Hekistotherms

Correct Answer: Hekistotherms ✔

Option A: High OP, high K+ conc

Option B: High OP, low K+ conc

Option C: Low OP, low K+ conc

Option D: Low OP, high K+ conc

Correct Answer: High OP, low K+ conc ✔

Option A: Chilling

Option B: Thermal death

Option C: Desiccation

Option D: Freezing

Correct Answer: Chilling ✔

Option A: Tropical zone

Option B: Sub-tropical zone

Option C: Alpine zone

Option D: Temperate zone

Correct Answer: Alpine zone ✔

Option A: Low K+ concentration and low O.P

Option B: High K+ concentration and low O.P

Option C: Low K+ concentration and high O.P

Option D: High K+ concentration and high O.P

Correct Answer: Low K+ concentration and high O.P ✔

Option A: Low temperature

Option B: High Temperature

Option C: Temperature below freezing

Option D: Temperature above 45 degree C

Correct Answer: Low temperature ✔

Option A: Pore size

Option B: Soil organisms

Option C: Type of roots

Option D: All of these

Correct Answer: All of these ✔

Option A: Turbidity of solar radiations

Option B: Percentage of solar absorption

Option C: Percentage of reflected light by a surface

Option D: Amount of light absorbed by forests

Correct Answer: Percentage of reflected light by a surface ✔

Option A: Lodging

Option B: Erosion

Option C: Salt spray

Option D: Injuries

Correct Answer: Salt spray ✔

Option A: 1-2%

Option B: 3-5%

Option C: 5-10%

Option D: 20-30%

Correct Answer: 5-10% ✔

Option A: Sciophytes

Option B: Chasmophytes

Option C: Helophytes

Option D: None of these

Correct Answer: Chasmophytes ✔

Option A: Epilimnion

Option B: Metalimnion

Option C: Hypolimnion

Option D: Thermocline

Correct Answer: Hypolimnion ✔

Option A: 40 meters

Option B: 400 meters

Option C: 200 meters

Option D: 5 meters

Correct Answer: 200 meters ✔

Option A: 10? – 15?C

Option B: 5? – 10?C

Option C: 20? – 25?C

Option D: 30? – 40?C

Correct Answer: C. 20? – 25?C ✔

Option A: Heliophytes

Option B: Chasmophytes

Option C: Chersophytes

Option D: Sciophytes

Correct Answer: Sciophytes ✔

Option A: Vertically oriented leaves

Option B: Horizontally oriented leaves

Option C: Dropping leaves

Option D: Twisted leaves

Correct Answer: Vertically oriented leaves ✔

Option A: Clements

Option B: Raunkiaer

Option C: Odum

Option D: Warming

Correct Answer: Raunkiaer ✔

Option A: Triticum

Option B: Lycopersicon

Option C: Gossypium

Option D: Nicotiana

Correct Answer: Triticum ✔

Option A: About 1%

Option B: 0.35%

Option C: 0.90%

Option D: 3%

Correct Answer: 0.90% ✔

Option A: About 1%

Option B: 3 – 5%

Option C: 7 – 8%

Option D: 14%

Correct Answer: About 1% ✔

Option A: Low temperature

Option B: High wind velocity

Option C: High light intensity

Option D: None of these

Correct Answer: High wind velocity ✔

Option A: 9%

Option B: 10%

Option C: 48%

Option D: 39%

Correct Answer: 9% ✔

Option A: Reaction wood formation

Option B: Absence of secondary growth

Option C: Absence of tylosis

Option D: All of these

Correct Answer: Reaction wood formation ✔

Option A: Social and antagonistic

Option B: Nutritive and antagonistic

Option C: Social and reciprocal

Option D: Nutritive and reciprocal

Correct Answer: Nutritive and antagonistic ✔

Option A: Above 32′

Option B: At the soil surface

Option C: Between 32′ – 64′ from soil level

Option D: In the hydrosphere

Correct Answer: At the soil surface ✔

Option A: Neutralism

Option B: Mutualism

Option C: Parasitism

Option D: Commensalism

Correct Answer: Commensalism ✔

Option A: Lodging

Option B: Erosion and deperition

Option C: Unidirectional wind

Option D: Salt spray

Correct Answer: Unidirectional wind ✔

Option A: Heliophilous

Option B: Hydrophilous

Option C: Pyrophilous

Option D: Pyriform

Correct Answer: Pyrophilous ✔

Option A: Obligate parasitism

Option B: Facultative parasitism

Option C: Halotism

Option D: None of these

Correct Answer: Halotism ✔

Option A: Reduction of biotic thrust

Option B: Destruction of diseased plants

Option C: Both (a) & (b)

Option D: None of these

Correct Answer: Both (a) & (b) ✔

Option A: 40?C

Option B: 60?C

Option C: 65?C

Option D: 80?C

Correct Answer: 80?C ✔

Option A: Commensalism

Option B: Protoco-operation

Option C: Mutualism

Option D: Antibiosis

Correct Answer: Antibiosis ✔

Option A: Rhizosphere

Option B: Rhizoplane

Option C: Soil microflora

Option D: All of these

Correct Answer: Rhizosphere ✔

Option A: Mc Dougal

Option B: Warming

Option C: Odum

Option D: de Bary

Correct Answer: de Bary ✔

Option A: Culture chamber

Option B: Inoculation chamber

Option C: Phytotron

Option D: All of these

Correct Answer: Phytotron ✔

Option A: Amensalism

Option B: Predation

Option C: Protoco-operation

Option D: Parasitism

Correct Answer: Amensalism ✔

Option A: No roots

Option B: Longer roots system

Option C: Aerial roots system

Option D: Shallow root system

Correct Answer: Shallow root system ✔

Option A: Commensalism

Option B: Predation

Option C: Neutralism

Option D: Mutualism

Correct Answer: Commensalism ✔

Option A: Non-obligatory mutualism

Option B: Non-obligatory commensalism

Option C: Facultative predation

Option D: Facultative parasitism

Correct Answer: Non-obligatory mutualism ✔

Option A: Litter

Option B: Organisms

Option C: Inorganic matter

Option D: All of these

Correct Answer: Litter ✔

Option A: Zoophily

Option B: Zoochory

Option C: Epiphytism

Option D: Mycorrhiza

Correct Answer: Epiphytism ✔

Option A: In situ seed germination

Option B: Longer viability

Option C: early cone separation

Option D: All these characters

Correct Answer: Longer viability ✔

Option A: Commensalism

Option B: Competition

Option C: Exploitation

Option D: None of these

Correct Answer: Commensalism ✔

Option A: Borne on the leaves

Option B: Borne underground

Option C: Present on the main stem

Option D: Suspended from the branches

Correct Answer: Borne underground ✔

Option A: Interference competition

Option B: Scramble competition

Option C: Allelopathy

Option D: Synnecrosis

Correct Answer: Interference competition ✔

Option A: Amensalism

Option B: Parasitism

Option C: Predation

Option D: Exploitation

Correct Answer: Amensalism ✔

Option A: Birds

Option B: Herbivores

Option C: Hunters

Option D: Human beings

Correct Answer: Human beings ✔

Option A: Allomones

Option B: Allelochemics

Option C: Kairomones

Option D: Depresants

Correct Answer: Allelochemics ✔

Option A: Darlingtonia

Option B: Viscum

Option C: Both (a) & (b)

Option D: Cephalotus

Correct Answer: Viscum ✔

Option A: Depresants

Option B: Allomones

Option C: Allelochemics

Option D: Kairomones

Correct Answer: Allelochemics ✔