All Free Forestry MCQs with Answers
Every Forestry question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
1,681 questions · page 1 of 85
- A. Trees and / or shrubs can substantially improve the productivity of farmlands
- B. They are exposed to strong winds
- C. None of these
- D. Both (a) & (b)
Explanation: Windbreaks and shelterbelts consist mainly of trees or shrubs planted where strong winds affect farmland.
Correct answer: Both (a) & (b)- A. Trees and shrubs best suited or preferred by the farmer how much space is available
- B. And whether the land is irrigated or rain fed.
- C. Both (a) & (b)
- D. None of these
Explanation: Windbreak selection depends on the farmer’s preferred tree and shrub species, available space, and whether the site is irrigated or…
Correct answer: Both (a) & (b)- A. The air is baffled and mixed as it hits the wind breaks
- B. Causing a disruptive turbulence patterns which spoils the energy and velocity of the wind
- C. All of the above
- D. This mixing and churning continues as the pressure gradient is built by the windbreak and the air leaks through or rolls over the top of the screen
Explanation: A windbreak disrupts airflow by baffling and mixing the air, creating turbulence that reduces wind energy and velocity.
Correct answer: All of the above- A. 80%Agriculture & Forestry
- B. 60%
- C. 70%
- D. 50%
Explanation: A good windbreak combines a dense, low shrub layer with more open tall rows so wind is reduced without producing excessive turbulence.
Correct answer: 50%- A. 1H
- B. 2H
- C. 3H
- D. 4H
Explanation: Windbreak influence generally extends much farther downwind than upwind because the protected air zone develops behind the barrier.
Correct answer: 2H6. A windbreak with 50% crown density is more effective than one of either 100% or of ______ density:
- A. 15%
- B. 20%
- C. 25%
- D. 30%
Explanation: A semi-permeable windbreak performs better than an extremely dense barrier, which causes strong turbulence, or a very open barrier, which…
Correct answer: 25%- A. Are carefully measured at various points on a line perpendicular to the center of the windbreak
- B. By calculation, it can be shown that the total potential yields for most crops will be 2-10% greater on the field
- C. None of these
- D. Both (a) & (b)
Explanation: Crop yield effects are measured at several points along a line perpendicular to the windbreak, allowing the protected and unprotected…
Correct answer: Both (a) & (b)- A. Grazing protection
- B. Fire protection
- C. Pruning
- D. Harvesting
- E. All of the above
Explanation: Windbreaks require protection from grazing and fire during establishment, while pruning and eventual harvesting maintain structure and…
Correct answer: All of the above- A. 50
- B. 100
- C. 150
- D. 200
Explanation: Irrigated forest plantations are regarded as a relatively recent land-use practice, becoming established on a broad scale during roughly…
Correct answer: 100- A. Land consideration: Land is divided into small pieces of different owners
- B. Land classification: Should be done according to (i) Permeability (ii) Percentage of cover (iii) Type of vegetation cover
- C. Both (a) & (b)
- D. None of these
Explanation: Watershed cropping decisions require consideration of land ownership and division, while land classification uses factors such as…
Correct answer: Both (a) & (b)- A. Mulch tillage
- B. Contour cultivation
- C. Tie Ridging
- D. Sub-soiling
- E. All of the above
Explanation: Mulch tillage, contour cultivation, tie ridging and sub-soiling improve arable land by conserving moisture, reducing erosion or breaking…
Correct answer: All of the above- A. Forest and trees are intimately linked to agriculture
- B. All of the above
- C. They provide a significant proportion of livestock feed
- D. They play vital role in sustaining crop yields by helping to maintain the soil and water base
Explanation: Trees support food security by protecting soil and water, sustaining crop productivity and supplying fodder for livestock.
Correct answer: All of the above- A. The magnitude of the problem on terms of people and areas affected, which is unprecedented in history
- B. The accelerating nature of the processes involved and the increasing irreversibility of their results
- C. All of the above
- D. The lack of success (for socio-economic, cultural or ecological reasons) of most agriculture technologies from temperate regions to solve land-productivity problems over large areas of the topics
Explanation: The global land-use crisis is serious because it affects unprecedented numbers of people and areas, is becoming harder to reverse, and…
Correct answer: All of the above- A. Agroforestry and social forestry as land use
- B. It is difficult to increase the forested area because suitable publicly owned lands are not available
- C. Both (a) & (b)
- D. None of these
Explanation: Agroforestry and social forestry can increase tree-based production outside conventional forests, while the scarcity of suitable public…
Correct answer: Both (a) & (b)- A. Tree might lessen the risk of hardship because of crop failure and whenever trees will allow farmers to accumulate capital or cash
- B. Trees will help to spread production activities throughout the year, by staggering the harvests, providing products in dry seasons, or spreading the labour load
- C. None of these
- D. Both (a) & (b)
Explanation: Agroforestry is especially useful when trees reduce the risk of crop failure, provide capital and spread production or labour across the…
Correct answer: Both (a) & (b)- A. Depletion of soil nutrients (especially nitrogen and phosphorous)
- B. All of the above
- C. Inadequate fuel and food supplies
- D. Soil degradation due to absence of soil cover at certain times
Explanation: A farming system becomes non-self-sustaining when nutrients are depleted, soil is exposed to degradation and basic fuel or food needs are…
Correct answer: All of the above17. Potential is:
- A. An agroforestry and social forestry approach to land use exists in areas
- B. Where soil fertility is low and mainly depends on the soil organic matter fraction
- C. All of the above
- D. Where erosion potential is high and where the incidence of surface soil desiccation is high
Explanation: Agroforestry and social forestry are especially useful on low-fertility, erosion-prone and drought-exposed land because trees improve…
Correct answer: All of the above- A. Increasing quality of minerals
- B. Increasing quality of protein
- C. Getting different kinds of crops
- D. Increasing fertility of soil
Explanation: Crop rotation maintains or improves soil fertility by alternating crops with different nutrient demands, especially by including legumes…
Correct answer: Increasing fertility of soil- A. At the sea shore
- B. Along rivers
- C. In water falls
- D. In all these places
Explanation: Wave erosion is caused by the repeated impact and backwash of waves, so it is most prominent along sea shores.
Correct answer: At the sea shore- A. Sterile soil is converted into fertile soil
- B. Soil is protected against loss
- C. Soil erosion is allowed
- D. Soil is aerated
Explanation: Soil conservation means protecting soil from erosion and other forms of loss so that its productive capacity is maintained.
Correct answer: Soil is protected against loss