All Free Forestry MCQs with Answers

• A. Temperate region
• B. Tropical region
• C. Torrid region
• D. Equatorial region

Explanation: This warm surface and much cooler subsurface water pattern is characteristic of tropical oceans, where strong heating occurs at the…

• A. Malformation
• B. Malfunction
• C. Malnutrition
• D. Undernourishment

Explanation: A diet supplying enough energy but too little protein causes protein-energy malnutrition, commonly associated with conditions such as…

• A. Salinity and soil erosion
• B. Soil depletion and water logging
• C. Soil erosion and depletion
• D. Salinity and water logging

Explanation: Irrigation without adequate drainage raises the water table and leaves salts behind as water evaporates, producing the linked problems of…

• A. Zero%
• B. Nearly zero%
• C. 0.50%
• D. 1%

Explanation: The listed highly developed countries have historically had very low population growth, often close to zero rather than exactly zero.

• A. Study of single species
• B. Study of different species
• C. Both (a) & (b)
• D. None of these

Explanation: Synecology studies groups of organisms or biological communities, so it deals with interactions among different species.

• A. Ecosystem
• B. Phytogeography
• C. Ecology
• D. Phytosociology

Explanation: Ecology examines relationships between living organisms and their physical and biological environment.

• A. Man
• B. Temperature
• C. Herbivores
• D. Soil

Explanation: Edaphic factors arise from soil properties such as texture, pH, moisture, nutrients, and depth.

• A. CSIR
• B. NEERI
• C. CPHERI
• D. ICAR

Explanation: NEERI, the National Environmental Engineering Research Institute, is concerned with environmental research, pollution control, and…

• A. Soil and water
• B. Man and environment
• C. Organism and environment
• D. Husband and wife

Explanation: Ecology is defined broadly as the study of relationships between organisms and their environment.

• A. Edaphic factor
• B. Edaphic climax
• C. Edaphotropism
• D. Pedogenesis

Explanation: Pedogenesis is the formation and development of soil from parent material through weathering, organic-matter accumulation, and profile…

• A. 6-7
• B. 8-9
• C. 3-4
• D. 10-11

Explanation: Most mineral nutrients are readily available near neutral pH, roughly 6 to 7, while very acidic or alkaline soils restrict nutrient…

• A. Oxylophytes
• B. Halophytes
• C. Psammophytes
• D. Tropical trees

Explanation: Psammophytes are adapted to sandy desert soils and help bind and stabilize shifting sand, providing a starting point for vegetation…

• A. Gravitational water
• B. Capillary water
• C. Storage capacity
• D. Field capacity

Explanation: After drainage has removed excess gravitational water but capillary movement has largely ceased, the remaining soil moisture is called…

• A. Halophytes
• B. Xerophytes
• C. Heliophytes
• D. Hydrophytes

Explanation: Halophytes are plants adapted to saline soils or saline water, often using salt exclusion, salt storage, or salt excretion mechanisms.

• A. Loamy soil
• B. Clayey soil
• C. Silty soil
• D. Sandy soil

Explanation: Clay has extremely fine particles and a large surface area, so it retains the greatest total amount of water.

• A. Run off water
• B. Gravitational water
• C. Hygroscopic water
• D. Capillary water

Explanation: Capillary water is held in soil pores with enough force to remain available to roots.

• A. Plentiful xylem and sclerenchyma
• B. Abundant air spaces and air chambers
• C. Leaves having stomata only on the upper side or none
• D. Poor development of roots

Explanation: Hydrophytes typically have extensive air spaces, reduced roots, and reduced supporting tissues because water provides support.

• A. Hydrophytes
• B. Mangroves
• C. Mesophytes
• D. Xerophytes

Explanation: Mangroves are salt-tolerant woody plants forming tidal forests in marshy coastal saline habitats.

• A. In sandy soil
• B. On gravels
• C. In clay soil
• D. In loamy soil

Explanation: Clay soils have very small pores and poor drainage, so water accumulates when drainage is inadequate, producing waterlogging.

• A. Nowhere on the plant
• B. Lower surface of the leaf
• C. Both the surfaces of the leaf
• D. On upper surface of the leaf

Explanation: Submerged leaves generally lack functional stomata because gases can diffuse directly across their thin surfaces from the surrounding…