CBSE Class 10 English Unseen Passage A

Read CBSE Class 10 English Unseen Passage A below, students should read unseen passage for class 10 English available on Studiestoday.com with solved questions and answers. These topic wise unseen comprehension for class 10 English with answers have been prepared by English teacher of Grade 10. These short passages have been designed as per the latest syllabus for class 10 English and if practiced thoroughly can help you to score good marks in standard 10 English class tests and examinations

CBSE Class 10 English Unseen Passage A. Students should do unseen passages for class 10 English which will help them to get better marks in English class tests and exams. Unseen passages are really scoring and practicing them on regular basis will be very useful. Refer to the unseen passage below with answers.

Read the Passage carefully:

Nanotechnology is the science of the miniature, the science that can create a mobile for an ant! Nano-materials are of thousand times smaller than the diameter of a human hair and can be applied to almost every field, from medicine to cosmetics. ‘Nano’ in Greek means ‘dwarf’ and when any material is reduced to a nano dimension, there are drastic changes in its physical, chemical, magnetic, optical, mechanical and electrical properties. It is for this reason that this cutting edge technology can be used in aerospace, engineering, bioscience, medical science, environment, electronics, security and a variety of other fields.

In the area of health, nanotechnology can create sensors in the form of biochips, to be inserted in the human body, targeting a drug to a single malignant cell. It can also make tiny medical devices and sensors with fantastic precision to reach areas where the surgeons’ hands cannot, and repair damaged and diseased tissues.

Nanotechnology can help scientists work on atoms at a finer level, helping us get more advanced products. Nanobats may be made from carbon nanotubes to carry out functions like human beings. Nanotechnology has the power to convert sunlight into power, providing unlimited energy sources. Moreover, as nanomaterials are light, strong and transparent, they can be used for a variety of products. Nano-coatings can be applied to different fabrics to make them scratch-resistant and dirt repellent. It also has the potential to produce garments which can block chemical and biological weapons from touching the skin of a person.

In computing, nanoscience may lead to smaller or more powerful microchips with increased capacity and dramatic reductions in the size of hard discs. In environmental science nanotechnology is providing ways to detect and filter bacteria and toxins out of water supplies and clear up heavy metal and organic chemical pollution. In military technology, governments are splashing cash on developing new, light weight equipment and weapons, bullet-proof battle-suits that can morph to provide camouflage.

Despite the fact that it still has relatively few commercial applications, nanotechnology has generated criticism from environmental groups and others who fear as-yet-unknown risks to human health and the environment. Critics have called for a moratorium on research, arguing that we know little about the toxicological effects of nanoparticles, and that there are no regulations to control them.

1.1On the basis of your reading of the passage, answer any four of the following questions: 

1.What makes it possible for nanotechnology to be used in a variety of sciences, technologies and fields?

2.How can nanotechnology revolutionise health and medicine?

3.In what ways can nanotechnology improve fabric and garment industries?

4.How will the computing be improved with the help of nanoscience?

5.On what grounds is nanotechnology being criticised? Why have some scientists opposed research in nanotechnology?

1.2 Complete any two of the following statements briefly: 

1.The author has used the expression mobile for an ant (line 1) to suggest that ………. 

2.Nanotechnology can help provide unlimited energy by ……….. 

3.Nanoscience can help make the environment safer by providing ways ………. 

1.3 Find words/phrases in the passage that mean the same as the following. Attempt any two: 

1.Highly advanced (Paragraph 1) 

2.Transform or change smoothly (Paragraph 4) 

3.Suspension or ban (Paragraph 5) 

1.1 Suggested answers for the above given questions

1.Nanotechnology is the science of the miniature, nano-materials are of thousand times smaller than the diameter of a human hair and can be applied in any field, from medicine to cosmetics. If any material is reduced to a nano dimension, there are drastic changes in its physical, chemical, magnetic, optical, mechanical and electrical properties. 

2.In the area of health, nanotechnology can create sensors in the form of biochips, to be inserted in the human body, targeting a drug to a single malignant cell. It can also make medical devices that can reach the areas where surgeons’ hands cannot go. 

3.Nanotechnology can improve fabrics and garments industries by providing nano-coatings to different fabrics to make them scratch-resistant and dirt repellent. It can also produce garments which can block chemical and biological weapons from touching the skin of a person.

4.In computing, nanoscience may lead to smaller or more powerful microchips with increased capacity and dramatic reductions in the size of hard discs. 

5.Nanotechnology is being criticised on the ground of environmental groups and others who fears as-yet-known risks to human health and environment. Critics have called for a moratorium on research, arguing that they know little about the toxicological effects of nanoparticles, and that there are no regulations to control them. 

1.2 Suggested answers for the above given questions: 

1.Nanotechnology is science of miniatures. 

2.Converting sunlight into power.      

3.To detect and filter bacteria and toxins out of water supplies and clear up heavy metal and organic chemical pollution.

1.3 Suggested answers for the above given questions

1.Highly advanced means cutting edge. 

2.Transform or change smoothly means morph. 

3.Suspension or ban means moratorium

More CBSE Class 10 English Unseen Passage......

Spices bring to mind images of tempting culinary art, fascinating travels and the bitter struggle for supremacy.Expressions like ‘Variety is the spice of life’ and ‘Sugar and spice and all that’s nice’ show how spellboundwere men of letters about spices.

To Orientals, spices are indeed the soul of food. In the Western world, it evokes dreams of exotic tropicalislands, exciting expeditions to find routes to the source and the rise and fall of empires. Columbus wentwestwards in 1492 from Europe to find a sea route to the land of spices but found the New world. Eight yearslater, Vasco da Gama went round Africa and touched Kozhikode on the South-West coast of India. Longbefore that, Arabs started trading with the Orient through land routes. During the 13th century, Marco Poloexperienced the attraction of spices in his travels. Even the European conquests and trade arrangements inIndia and the East Indies had a lot to do with spices.

Thousands of years ago, great masters of Ayurveda (the Indian system of medicine), notably Susruta andCharaka, discussed in detail the use of spices for culinary and medicinal purposes. Enterprising soldiers offortune took the knowledge of spices to Egypt. There they used spices and aromatic herbs in food, medicine,cosmetics and for embalming. The conquest of Eqypt and Asia by Alexander the Great, made spices anarticle of commerce in Mediterranean countries and later in central and northern Europe. There are reports ofpepper being used in meat, both to aid preservation, and to mask the unwelcome odour of deterioration ofquality, during the long winter storage,
 
Hippocrates, the father of modern medicine, and Theophrastus, a Greek scholar and botanist, wrote treatiseson medicinal plants, including spices. India has been home to most of the major spices of the world withvarieties from Kerala dominating international trade.
 
Read the passage and answer the following questions :

Ques.a.Why do spices fascinate people ?
Ans. Spices fascinate people as they bring to mind images of tempting culinary art, fascinating travels and thebitter struggle for supremacy.
 
 
Ques.b.Where do Orientals live?
Ans. Orientals live in the Orient which includes India and the East Indies.
 
 
Ques.c.Where did Columbus want to reach ?
Ans. Columbus wanted to find a sea route to the land of spices.
 
 
Ques.d.What is meant by ‘culinary skills’?
Ans.‘ Culinary skills’ means skills that a person has for cooking.
 
 
Ques.e.What did Susruta and Charaka discuss in detial?
Ans. Susruta and Charaka discussed in detail the use of spices for culinary and medicinal purposes.
 
 
Ques.f.What made spices an article of commerce in Mediterranean countries?
Ans. The conquest of Egypt and Asia by Alexander the Great made spices an article of commerce in Mediterraneancountries.
 
 
Ques.g.Who have written treatises on medicinal plants, including spices?
Ans. Hippocrates (father of modern medicine) and theophrastus (a Greek scholar and botanist) have written treatiseson medicinal plants including spices.
 
 
Ques.h.Give an expression from the pessage that uses the word ‘spice’ in it.

Ans. Variety is the spice of life.

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