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 zoology selection and evolution extinction extinctions environmental science

Which of the following is the tallest tree of the world?

  1. Eucalyptus regnans

  2. Sequoia sempervirens

  3. Pinus longifolia

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

The tallest trees in the world are redwoods (Sequoia sempervirens), which tower above the ground in California. These trees can easily reach heights of 300 feet (91 meters).


So, the correct option is 'Option A, Eucalyptus regnans'.

Multiple choice botany stem - external morphology habit of plants plant classifications type of plants

A plant has weak stem which can coil around an upright support. It is a

  1. Liane

  2. Twiner

  3. Climber

  4. Creeper
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
A plant with a weak stem which can coil around an upright support is a twiner because as the name implies the weak stem twines or coils around the support for its growth.
So the correct option is Twiner. 
Multiple choice botany stem - external morphology habit of plants plant classifications type of plants

Which of the following can be related to the creepers?

  1. The stem is fragile

  2. They creep on the ground

  3. They have floating roots

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • Creeper is the type of plant that grows completely on the ground.
  • There stem is completely fragile and that is unable to stand erect and does not support the weight of the plant.
So the correct option is 'Both A and B'.

Multiple choice commercial applications forest and wildlife laws - environmental ethics and resource use environmental conservation. our social responsibility conservation of forest laws and movements for the conservation of forests and wildlife

Silviculture is the?

  1. Art and science of cultivating herbs

  2. Art and science of cultivating grasses

  3. Art and science of cultivating flowers

  4. Art and science of cultivating forest trees
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Silviculture is the practice of controlling the growth, composition, health, and quality of forests to meet diverse needs and values. The study of forests and woods is termed silvology. 

So, the correct answer is 'Art and science of cultivating forest trees'.

Multiple choice commercial applications forest and wildlife laws - environmental ethics and resource use environmental conservation. our social responsibility conservation of forest laws and movements for the conservation of forests and wildlife

The branch of science dealing with development and utilisation of forests is

  1. Apiculture

  2. Silviculture

  3. Sericulture

  4. Horticulutre
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Silviculture is the branch of science that deals with the development and utilization of forest. It is the cultivation of trees or the establishment or growth, composition, health, and quality of forests to meet diverse needs and values based on the knowledge of silvics. Silvics is the study of the life history and general characteristics of forest trees with respect to local environmental factors. Apiculture is the management and study of honeybees. 
Sericulture or silk farming is the rearing of silkworms for the production of silk. 
Horticulture is the branch of agriculture that deals with the art, science, technology, and business of plant cultivation e.g., fruits, vegetables, nuts, seeds, herbs, ornamental trees etc. Thus, the correct answer is option B. 
Multiple choice commercial applications forest and wildlife laws - environmental ethics and resource use environmental conservation. our social responsibility conservation of forest laws and movements for the conservation of forests and wildlife

Van Mahotsav is meant for

  1. Afforestation

  2. Deforestation

  3. Start of grazing season

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

Van Mahotsav is an annual tree-planting festival in India, celebrated in the first week of July. This movement was initiated in the year 1950 by India's then 'Union Minister for Agriculture', Kulapati Dr.K M Munshi. The aim of this festival is to create awareness regarding the importance and preservation of the forest. People celebrate Van Mahotsava by planting trees or saplings in homes, offices, schools, colleges, and thus, called as afforestation. 

Multiple choice commercial applications forest and wildlife laws - environmental ethics and resource use environmental conservation. our social responsibility conservation of forest laws and movements for the conservation of forests and wildlife

Which deals with establishment, growth and reproduction of timber trees? 

  1. Afforestation

  2. Silviculture

  3. Horticulture

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

Afforestation deals with the establishment of a forest in a barren land devoid of any trees. Siviculture deals with establishment, growth and reproduction of timber trees. Horticulture deals with the practice of garden cultivation and management. Agroforestry deals with growing trees or shrubs around or among crops or pastureland. 

Thus, the correct answer is 'Silviculture'.

Multiple choice commercial applications forest and wildlife laws - environmental ethics and resource use environmental conservation. our social responsibility conservation of forest laws and movements for the conservation of forests and wildlife

A forestation with the pin pose of environmental, aesthetic and economic development is known as ______________.

  1. Integrated afforest ion

  2. Scientific forest conservation

  3. Social forestry

  4. Integrated forest management
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice commercial applications forest and wildlife laws - environmental ethics and resource use environmental conservation. our social responsibility conservation of forest laws and movements for the conservation of forests and wildlife

Afforestation should be with

  1. exotic species

  2. indigenous species

  3. bamboos

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

Afforestation is most effective and ecologically sound when using indigenous species, as they are already adapted to the local climate and support local biodiversity.

Multiple choice evs forests: our lifeline food material and source sources of food and food habits of animals seed dispersal

The decomposers in the forest perform 

  1. Production of the plants

  2. Decomposition of the plants and animals

  3. Breakdown of the forests

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Decomposers are saprotrophs, which decompose the organic remains of plants and animals by secreting extracellular digestive enzymes. Due to degradation of organic remains, decomposers are also called reducers. Heterotrophic bacteria and saprophytic fungi are the important organisms which usually act as decomposers. Thus, the correct answer is option B.

Multiple choice biology garbage in, garbage out recycling of paper ways to reduce non degradable garbage recycling plastic waste thermocol reduce, recycle, reuse

......... of paper is made up of trees.

  1. 50%

  2. 10%

  3. 95%

  4. 5%
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Paper is made from the cellulose fibres which are obtained from the wood of the trees. The cellulose fibres are converted to pulp. This pulp is treated with various chemicals and then dried to form the sheets of paper. There are substances like lignin in the wood of trees which results in the paper to become yellow and brittle over some time. So, the yield from the trees for paper production is about 95%. 

Thus, the correct answer is option C. 

Multiple choice biology classification of living beings hierarchy of classification different types of classifications introduction to classification of living organisms

The rose wood tree of India is

  1. Dalbergia sissoo

  2. Pinus roxburghii

  3. Tamarindus indica

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

Dalbergia sissoo or Rosewood tree is the native of the Indian subcontinent and southern Iran. It is an evergreen rosewood tree, also known as Sheesham, sisu, tahli, Tali. It is primarily found growing along river banks below 900 meters. The temperature in its native range averages 10–40 °C. It can withstand average annual rainfall up to 2,000 millimeters (79 in) and droughts of 3–4 months. Thus, the correct answer is option A.