Home
Class 6
BIOLOGY
Read the given statements and select the...

Read the given statements and select the correct ones.
(i) Hemp fibres are obtained from the leaves of its plant.
(ii) Examples of bast fibres are jute, hemp and sisal.
Silk cotton is obtained from silky hair that surround the seeds of kapok trees.
(iv) Wool on burning gives the smell of burning hair.

A

(i),(iii) and (iv) only

B

(ii),(iii) and (iv) only

C

(iii) and (iv) only

D

(i),(ii) and (iii) only

Text Solution

AI Generated Solution

The correct Answer is:
To determine which statements are correct, let's analyze each one step by step: 1. **Statement (i)**: "Hemp fibres are obtained from the leaves of its plant." - This statement is **incorrect**. Hemp fibers are actually obtained from the stem of the hemp plant, not the leaves. 2. **Statement (ii)**: "Examples of bast fibres are jute, hemp and sisal." - This statement is **partially incorrect**. While jute and hemp are indeed bast fibers (fibers obtained from the stem), sisal is not a bast fiber; it is a leaf fiber obtained from the agave plant. Therefore, this statement is not entirely correct. 3. **Statement (iii)**: "Silk cotton is obtained from silky hair that surrounds the seeds of kapok trees." - This statement is **correct**. Silk cotton, also known as kapok, is indeed derived from the silky fibers that surround the seeds of kapok trees. 4. **Statement (iv)**: "Wool on burning gives the smell of burning hair." - This statement is **correct**. When wool is burned, it emits a smell similar to that of burning hair, as both are made from protein fibers. ### Summary of Correct Statements: - The correct statements are (iii) and (iv). ### Final Answer: The correct option is the one that includes statements (iii) and (iv).

To determine which statements are correct, let's analyze each one step by step: 1. **Statement (i)**: "Hemp fibres are obtained from the leaves of its plant." - This statement is **incorrect**. Hemp fibers are actually obtained from the stem of the hemp plant, not the leaves. 2. **Statement (ii)**: "Examples of bast fibres are jute, hemp and sisal." - This statement is **partially incorrect**. While jute and hemp are indeed bast fibers (fibers obtained from the stem), sisal is not a bast fiber; it is a leaf fiber obtained from the agave plant. Therefore, this statement is not entirely correct. ...
Promotional Banner

Topper's Solved these Questions

  • NSO QUESTION PAPER 2020-21 SET A

    SCIENCE OLYMPIAD FOUNDATION |Exercise ACHIEVERS SECTION|3 Videos
  • NSO QUESTION PAPER 2019-20 SET A

    SCIENCE OLYMPIAD FOUNDATION |Exercise ACHIEVERS SECTION|4 Videos
  • OUR ENVIRONMENT

    SCIENCE OLYMPIAD FOUNDATION |Exercise Achievers Section (HOTS)|5 Videos

Similar Questions

Explore conceptually related problems

Read the given statements about lichens and select the incorrect ones. (i) They represent an example of commensallism. (ii) Algal partner obtains water and mineral salts from the fungus and the fungal partner obtains food prepared by the aiga. (iii) These do not grow in polluted areas. (iv) The mycobiont is usually an Ascomycetes or a Basididiomycetes. (v) The phycobiont is mostly a green alga or a cyanobacterium. (vi) These constitute the pioneer community in case of hydrosere.

Read the following statements and select the correct ones. (i) Conidia are the asexual propagules restricted to Kingdom Fungi. (ii) Apiece of potato tuber having at least one eye (or node) is capable of giving rise to a new plant. (iii) Ginger propagates vegetatively with the help of its underground roots. (iv) Fleshy buds which take part in vegetative propagation are called bulbilsm present in Dioscorea, Agave, etc.

Read the given statements and select the correct ones. (i) Swan-necked flask experiment was done by Louis Pasteur. (ii) The early belief of the spontaneous origin of life was disproved by Louis paseteur. (iii) Louis Pasteur is famour for germ theory of dieseases. (iv) The idea that life originates from pre-existing life is referred to as biogenesis theory. (v) Father Suarez was one of the greatest supporter of theory of special creation. (vi) Cosmozoic theory of the origin of life was proposed by Richter. (vii) The founder of 'theory of catastrophism' is Georges Cuvier.

Read the given statements and select the correct ones. (i)Autonomic neural system transmits impulses from the CNS to the voluntary organs and striated muscles of the body. (ii)Unmyelinated nerve fibres do not have Schwann cells which form the myelin sheath. (iii)Axonal membrane of a neuron while not conducting any impulse is comparatively more permeable to potassium ions (K^+) than to sodium ions (Na^+) (iv)A synapse is formed by the membranes of presynaptic neuron and a post synaptic neuron.

(i) Why are only some parts of plants used for making ropes ? (ii) Cotton fibres are obtained from which part of cotton plant ? (iii) In which state of our country, jute growing is a major source of income.

Study the following statement with reference to drugs and choose the incorrect ones (i). Barbiturates cause sleeplessness (ii). Opioids are obtained from the leaves of Erythroxylum coca (iii). Morphine is a very effective sedative and pain killer (iv). Cocaine is obtained from hemp plant

Assertion: Cotton and jute are fibre yielding plants. Reason: Cotton is obtained from seed hair (lint) and jute fibres are obtained from stalks of retted jute.

Read the following statements and select the correct ones (i) Nodal tissue is specialised cardiac musculature in human heart which has the ability to generate action potential due to an external stimuli (ii) Position of SAN - right corner of right atrium (iii) Position of AVN - right corner of ventricle (iv) AV bundle continues from AVN (v) Purkinje fibres are modified cardiac muscle fibres that originate from the atrioventricular node and spread into the two ventricles.