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

What is a deciduous plant?

  1. A plant that bears fruit

  2. A plant that bears cones all year round

  3. A plant that keeps its leaves all year round

  4. A plant that loses its leaves each year
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Deciduous plants are those that shed their leaves annually, typically in the autumn. This is a survival strategy to conserve water and energy during colder or drier seasons.

Multiple choice

How can you tell the age of most trees?

  1. By counting the rings on the trunk

  2. By measuring the tree's height

  3. By measuring the tree's width

  4. By counting the number of leaves a tree has
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dendrochronology is the study of tree rings. Each ring typically represents one year of growth, allowing one to estimate the age of most trees.

Multiple choice botany transport in plants osmotic relations of plant cells transport across membrane imbibition and its importance

The practice of breaking of rocks during rainy season by inserting wooden pegs in them is based on the phenomenon of ______________.

  1. Imbibition pressure

  2. Turgor pressure

  3. Osmotic pressure

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

Imbibition pressure generated during germination of seeds and spores is so enormous that it can break asphalt roads and concrete pavements. In older times, the imbibition pressure was used in breaking the rocks and stones. Dry wooden stakes, if driven into a small crack in a rock and then soaked, can develop enough pressure to split the rock.

Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

Two important papilionaceous timber woods are

  1. <p>Dalbergia sisso and Albizzia lebbek</p>

  2. <p>Butea monosperma and Xylia xylocarpa</p>

  3. <p>Dalbergia sisso and Intisia hookeri</p>

  4. <p>Dalbergia sisso and Pterocarpus marsupium</p>
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

  • Butea monosperma, commonly known as flame of the forest and bastard teek is native to tropical and subtropical parts of the Indian subcontinent and Southeast Asia. It is used for timber, resin, fodder, medicine and dye.

  • Xylia xylocarpa is a perennial tree belonging to family Fabaceae. It produces timber, medicine and the seeds are edible.

  • So, the correct answer is 'Butea monosperma and Xylia xylocarpa'.

Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

Lightest wood is

  1. Hardwichia albino

  2. Ochromoa lagopus balsa

  3. Cereus giganteus

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

Ochromoa is the genus of flowering plants and is commonly called balsa tree. Balsa wood is the lightweight material. These  trees are found in Brazil, Mexico and northern Bolivia.

Hence the answer is B.

Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

Indian rose wood tree is common name of

  1. Acacia

  2. Shorea

  3. Dalbergia

  4. Eucalyptus
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The answer is C - Dalbergia
North Indian rose wood tree is the common name of Dalbergia sissoo. It is hardy, deciduous and fast-growing tree found in the Indian subcontinent and in Southern Iran. It has white or pinkish flowers.  It is used in the timber industry, as fuel wood and as in some the extracts as used as a pesticide.
Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

Which tree derives its name from common legend that Judas Iscariot hanged himself on it?

  1. Quercus robur

  2. Araucaria araucana

  3. Curchorus capsularis

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

Cercis siliquastrum, commonly known as the Judas tree or Judas-tree, is a small deciduous tree from Southern Europe and Western Asia which is noted for its prolific display of deep pink flowers in spring. This species forms a small tree up to 12 m (39 ft) in height and 10 m (32 ft) in width. The deep pink flowers are produced on year-old or older growth, including the trunk, in spring. Also, the flowers display a blossom with five free petals and fused sepals. This shape is specific to the Fabaceae. The leaves appear shortly after the first flowers emerge. These are cordate with a blunt apex, which occasionally has a shallow notch at the tip. The tree produces long flat pods that hang vertically. The flowers are edible and purportedly have a sweet-acid taste. There is a belief that Judas Iscariot hanged himself from a tree of this species. Another possible source for the vernacular name is the fact that the flowers and seed pods can dangle direct from the trunk in a way reminiscent of Judas's possible method of suicide.

So the correct option is 'Cercis siliquastrum'.

Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

Wood of Aschynomene is

  1. Lighter like cork

  2. Lighter than cork

  3. Heavier like iron wood

  4. Heavier than iron wood
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Aschynomene is a genus belonging to the family Fabaceae. The used part of Aschynomene is the wood of the stem (often mistaken as pith). The woods of Aschynomene species is one of the lightest woods in the world. The wood feels like a piece of thermacol or even lighter than the cork. The wood is bright-white to off-white in colour.

So, the correct answer is 'Lighter than cork'.

Multiple choice geography basic problems of an economy introduction to natural resources (eco) understanding development: perspectives, measurement and sustainability resources - types and conservation

Forests were categorised by the Forest Act of _________.

  1. 1865

  2. 1906

  3. 1927

  4. 1878
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Forest are classified into Reserved Forest, a Protected Forest or a Village Forest according to Forest Act of 1878. Land rights on reserved forests and protected forests are given according to the orders passed by government.

The main difference between these two are that reserved forests activities like hunting, grazing etc. are totally banned. Reserved forests may be upgraded to the status of wild life sanctuary and then to National Park.

In protected areas activities like hunting, grazing etc. are permitted to the local communities.  

All the forests and wastelands other than the reserved and protected forests are considered unclassed forests. Most of the forests in the north-eastern states of India and Gujarat are unclassed forests            

Multiple choice general knowledge impact of technology on livelihoods animal husbandry and fishery cattle farming agriculture sector

The plants that begin life as epiphytes in the canopy and send their roots downward to the forest floor is called as _________.

  1. lianas

  2. stranglers

  3. parasites

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

Strangler plants begin as epiphytes in the canopy and grow roots down to the ground, eventually encircling and often killing the host tree. Lianas are woody vines, while parasites and saprophytes have different nutritional strategies.

Multiple choice

When building a fire in the wilderness, what type of wood is generally considered the best?

  1. Softwood

  2. Hardwood

  3. Greenwood

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

Deadwood is dry and burns more easily than other types of wood, making it ideal for starting and maintaining a fire.

Multiple choice

Which of the following is NOT a major type of fruit tree training system?

  1. Central Leader

  2. Open Center

  3. Espalier

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

Bush is not a major type of fruit tree training system. Central Leader, Open Center, and Espalier are all common training systems used for fruit trees.

Multiple choice

What is the process of removing unwanted branches and shoots from a fruit tree called?

  1. Pruning

  2. Grafting

  3. Pollination

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

Pruning is the process of removing unwanted branches and shoots from a fruit tree to improve its shape, health, and productivity.