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

Building can be protected from lightening by using

  1. Wooden logs at the top of buildings

  2. Lightening rod on the level of building

  3. Lightening rod at the top of building

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

A lightning rod or lightning conductor is a metal rod or metallic object mounted on top of an elevated structure, such as a building, a ship, or even a tree, electrically bonded using a wire or electrical conductor to interface with ground or earth through an electrode, engineered to protect buildings from lightening.

Multiple choice

Directions: Select the correct option and fill in the blank.

The number of trees ____ gradually decreasing.

  1. is

  2. are

  3. has

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

(2) is incorrect because the phrase “The number” as a subject is used in the singular sense and as such a singular verb is needed whereas (2) is used for a plural subject or with the second person personal pronoun. (3) and (4) are incorrect because they are the helping verbs and as such they must have a main verb, which is not there or if 'decreasing is considered to be the main verb then it belongs to the continuous (progressive) tense, where (3) and (4) are not used.

Multiple choice

Which part of trees act as pinhole camera during a dark night with no source of light?

  1. branches

  2. slam

  3. gaps in leaves

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

Image formed by pinhole camera is real, upside down i.e. inverted and a clear or a sharp one. (size of the pinhole should be quite small). Simply explained, it is a light proof box with a small hole in one side. When sunlight passes through the tree leaves, we are able to see the circular images of the sun. During the same, it is the gaps in the leaves which acts as pinhole camera and produce an image of sun.Light is required for image formation so no image will be formed during night with no source of light

Multiple choice

The age of a tree can be estimated by

  1. its height

  2. the girth of its trunk

  3. the number and size of its branches

  4. the number of concentric rings on a cross section of its trunk
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Dendrochronology is the scientific method of dating tree rings to the year they were formed, which allows for the estimation of a tree's age.