Biology · Environmental Studies

Forestry and Plant Sciences

985 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 geography natural vegetation and communities dependent on forest forests and their conservation biotic resources: natural vegetation and wildlife natural vegetation and animals in india

Tick the correct answer:
Deodars and firs are a type of __________.

  1. Confierous trees

  2. Deciduous trees

  3. Shrubs

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

Confierous trees,
Deodars are native trees to western Himalayas. They are large evergreen coniferous trees reaching 40-50m tall with a trunk up to 3m in diameter. It has a conic crown with level branches.

Multiple choice geography natural vegetation and communities dependent on forest forests and their conservation biotic resources: natural vegetation and wildlife natural vegetation and animals in india

One important variety of tree in coniferous forest is ________.

  1. Rosewood

  2. Pine

  3. Teak

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

Pine,

Coniferous forests are also called Taiga. They have tall, softwood evergreen trees. Chir, pine, cedar are important variety of trees in these forests.

Multiple choice geography natural vegetation and communities dependent on forest forests and their conservation biotic resources: natural vegetation and wildlife natural vegetation and animals in india

Mahagony, ebony and green heart are the trees in _____________.

  1. Coniferous forests.

  2. Evergreen forests.

  3. Monsoon forests.

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

Mahogany, ebony, and greenheart are characteristic trees found in tropical evergreen forests, which are dense and broad-leaved.

Multiple choice geography natural vegetation and communities dependent on forest forests and their conservation biotic resources: natural vegetation and wildlife natural vegetation and animals in india

Wood of softwood evergreen trees is very useful for making pulp, which is used for manufacturing.

  1. silk and wool

  2. meat and curd

  3. clothes and tyres

  4. paper and newsprint
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Softwoods are cheaper and easier to work with than hardwoods. They are mainly used for- pulp for paper, durable home woodwork, and construction timbers.

Multiple choice geography natural vegetation and communities dependent on forest forests and their conservation biotic resources: natural vegetation and wildlife natural vegetation and animals in india

Cinchona, rubber, mahogany, ebony are important trees of____________.

  1. Mangrove forests

  2. Tropical deciduous trees

  3. Tropical rainforests

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

The tropical rainforests are confined to areas of heavy rainfall. Areas which receive more than 200 cm of rainfall and have a short dry season are the best area for tropical rainforest. Almost all kinds of vegetation, like trees, shrubs and creepers, are found in such a forest. Ebony, mahogany, rosewood, rubber, and cinchona are some of the commercially important trees of tropical rainforests.

Multiple choice geography natural vegetation and communities dependent on forest forests and their conservation biotic resources: natural vegetation and wildlife natural vegetation and animals in india

Trees of mountain forest are ________.

  1. large and old

  2. small

  3. sharp

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

Mountain forests consist of trees that aren't found in low-lying areas. The trees have adapted to the cool climate, heavy downpours and intense sunshine. In low-lying areas, they are squeezed out by different tree species. Hence trees of mountain forest are large and old.

Multiple choice evs - i rules are for everyone sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

In a gene bank, genetic material is stored in the form of the

  1. Seeds

  2. Vegetative materials

  3. Both A and B

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

Gene banks are a type of biorepository, which preserve genetic material. For plants, this could be by freezing cuttings from the plant or stocking the seeds (e.g., in a seedbank). 

For animals, this is the freezing of sperm and eggs in zoological freezers until further need. With corals, fragments are taken which are stored in water tanks under controlled conditions. 

Multiple choice movement in plants living world of plants - plant physiology biology

If a tree, flowers thrice in a year (October, January and July) in Northern India, it is said to be

  1. Photosensitive but thermo-insensitive

  2. Thermosensitive but photo-insensitive

  3. Photo and thermo-insensitive

  4. Photo and thermosensitive
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In the case mentioned here, the plant is able to undergo flowering during all seasons of the year. it shows that the plant is insensitive to light. Photoperiodism has no great effect on the plant.

Multiple choice botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

The resistant variety of rice to bacterial blight is

  1. Jaya

  2. TMK-6

  3. IR-20

  4. IR-8
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • Xanthomonas campestris causes bacterial blight of rice which is one of the most important diseases of rice in most of the rice-growing countries. Bacterial blight of rice has high epidemic potential and is destructive to high-yielding cultivars in both temperate and tropical regions especially in Asia.
  • IR8 is a high-yielding semi-dwarf rice variety developed by the International Rice Research Institute (IRRI) in the early 1960s. It is the resistant variety of rice to bacterial blight.
So, the correct answer is 'IR-8'

Multiple choice botany plant tissues permanent tissues and their types simple permanent tissues tissues: plant tissues

It is difficult to pull out the husk of a coconut tree due to _____________.

  1. Presence of parenchyma.

  2. Presence of sclerenchyma.

  3. Presence of collenchyma.

  4. Presence of aerenchyma.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Parenchyma cells are thin-walled, flexible and loosely packed cells. They are often alive at maturity. Their shape changes as per function. They are filler tissue in soft parts of a plant. 
Collenchyma cells are thin-walled with some areas of secondary thickening. They provide extra structural support and flexibility to plant. Coconut husk is not made of collenchymatous cells. 
In many aquatic plants, parenchyma cells have large air cavities to give buoyancy to the plant and enable them to float in water. Such parenchyma cells are called as aerenchyma.
Sclerenchyma is dead, long, thin narrow cells. Walls of sclerenchyma cells are lignified, which make them thick. This tissue makes the plant hard and stiff. Coconut husk is very hard and is made of such thickened, lignified cells. Such cells make it very hard to pull out the coconut husk.

Multiple choice botany taxonomy and systematic botany taxonomy and systematics systematics of living world kingdom plantae plant taxonomy classification of biodiversity

Arisotle classify plants into

  1. Trees

  2. Shrubs

  3. Trees, shrubs and herbs

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Classification is the arrangement of living organisms into groups on the basis of similarities and dissimilarities between them and placing within taxonomic hierarchy such as kingdom, genus, species etc. Aristotle was the first to give a scientific basis for classification. He classified living organisms into two groups; plants and animals.
He divided plants into trees, shrubs and herbs on the basis of simple morphological characters.
So, the correct answer is 'Trees, shrubs and herbs'.
Multiple choice geography secondary sector : industry generation of electricity exploration and conservation of minerals irrigation and power

Forests can be conserved if _______________.

  1. Trees are cut down worldwide

  2. Trees are cut down selectively

  3. Rate of plantation does not exceed rate of cutting trees

  4. New seedlings are not planted and grown trees are cut
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In selective cutting only mature trees are selected for cutting. This process is to be followed in rotation. Shelter wood cutting is where first of all useless trees having been cut down followed by medium and best quality timber trees.

Multiple choice commercial studies striving for a better environment unequal distribution of resources protecting our environment rules are for everyone

Which of the following is not a natural resource?

  1. Mango tree

  2. Snake

  3. Wind

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

Natural resources are the resources made available by the nature to us. The important natural resources are the trees, animals and climatic factors like wind. All of these can be used variously to generate goods and services for our benefit. For example- trees provide us fruits, fresh air, timber etc. All animals and plants are important for the ecological balance on the Earth. Further some animals are of direct economic benefit for mankind. Climatic factors like sunlight and wind power can be harnessed to generate energy.