Biology · Environmental Studies

Forestry and Plant Sciences

1,005 Questions

Review important biological concepts with these questions on forestry and plant sciences. The topics include non-timber forest products, timber wood types, lichen growth, and tree structures. This content is ideal for students preparing for agriculture and biology exams.

Industrial wood productionLichen growth patternsNon-timber forest productsPapilionaceous timber woodsTree crown typesFast growing trees

Forestry and Plant Sciences Questions

Multiple choice

In cycas, wood is known as

  1. pycnoxylic

  2. cycads

  3. monoxylic

  4. polyxylic

  5. willow
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In cycas, wood in known as polyxylic.

Multiple choice

Which of the following trees is temperate hardwood?

  1. Oak

  2. Pine

  3. Cider

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Oak is a temperate hardwood tree known for its strong, durable wood used in furniture and construction. Pine is a softwood conifer, while 'Cider' appears to be a typo (likely meant 'Cedar' which is also a softwood). Hardwoods like oak are typically broad-leaved deciduous trees.

Multiple choice

Bamboo is an example for

  1. annual

  2. biennial

  3. biannual

  4. perennial
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Bamboo is a perennial plant that lives for many years. Most bamboo species flower only once after decades of vegetative growth (monocarpic), and unlike annuals or biennials, they persist for many growing seasons.

Multiple choice

The leaflets _____ axillary buds in their axils.

  1. always bear

  2. do not bear

  3. rarely bear

  4. frequently bear
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Leaflets are subdivisions of a compound leaf and do not have axillary buds in their axils. Axillary buds are found only in the axils of complete leaves (at the base of the petiole), not in the axils of individual leaflets. This is a key anatomical distinction between simple leaves, compound leaves, and their leaflets.

Multiple choice

Which of the following is related to Silviculture?

  1. Culture of Hilsa

  2. Culture of silver carp

  3. Culture of oil - producing plants

  4. Forests crops
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Silviculture is the practice of controlling the establishment, growth, composition, health, and quality of forests to meet diverse needs and values. It specifically refers to the cultivation of forest trees and therefore relates to forest crops rather than fish or oil-producing plants.

Multiple choice

The heavy-stemmed, closely branched shrubs are propogated through

  1. air layering

  2. mound layering

  3. compound layering

  4. tip layering
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mound (stool) layering is useful with heavy-stemmed, closely branched shrubs and rootstocks of tree fruits. Cut the plant back to 1 inch above the soil surface in the dormant season. Dormant buds will produce new shoots in the spring. Mound soil over the new shoots as they grow . Roots will develop at the bases of the young shoots. Remove the layers in the dormant season e.g., apple rootstocks, spirea, quince, daphne, magnolia, and cotoneaster.

Multiple choice

What is the term used for the system of cutting trees controlled by the forest department in which old trees are cut and new ones are planted?

  1. Scientific discovery

  2. Scientific forestry

  3. Scientific Process

  4. Scientific Theory
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Scientific forestry is the systematic management of forests where old trees are selectively harvested and new trees are planted to maintain sustainability. This practice became common during colonial periods to ensure continuous timber supply. The other options - scientific discovery, process, and theory - are general scientific concepts unrelated to forest management.

Multiple choice

Bonsai is

  1. The art of growing trees in small pots

  2. The art of doing embroidery on clothes

  3. The art of dealing with arrangement of flowers

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Bonsai is the Japanese art of growing and cultivating trees in small containers to create miniature versions that mimic the shape and scale of full-sized trees. It involves careful pruning, wiring, and training techniques over many years. It is not related to embroidery (A) or flower arrangement (C), which would be embroidery and ikebana respectively.

Multiple choice

Which of the following trees are known as “ecological terrorist”?

  1. Eucalyptus

  2. Babool

  3. Amaltash

  4. Neem
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Eucalyptus trees are called 'ecological terrorists' because they're highly invasive in non-native regions. They rapidly deplete groundwater, produce allelopathic chemicals that inhibit native plant growth, and create monocultures that reduce biodiversity.

Multiple choice

A good quality wood for sleeper is

  1. Deodar

  2. Sheesham

  3. Teak

  4. Sal
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Teak is one of the finest timbers for railway sleepers due to its durability, natural resistance to decay and termites, and ability to withstand heavy loads. It has been traditionally used in Indian railways.