Explore topic-wise InterviewSolutions in Current Affairs.

False 

Handwriting recognition software allow the user to write in his/her normal handwriting.

Scanner is a device that allows a user to convert an image into a   digital file.

(i) (a) Relatively cheap and reliable. 

(b) Can display text and graphics in a wide range of colors. 

(ii) (a) No permanent copy to keep the results as it will disappear when the computer is switched OFF. 

(b) Unsuitable for users with visual problems.

True 

Because there is no physical contact between the print heads and the paper.

LCD stands for Liquid Crystal Display. These screens are used in notebooks and laptops sized PCs. A special type of liquid is sandwiched between two plates. It is thin, flat and light weight screen made up of any number of colors. 

Some of the major features of LCD monitors are as follows: 

1. Reduced radiation 

2. Light weight 

3. Less eyestrain

False 

Because most of the LCD monitors do not come with touch facility where information is provided by touching the icons.

(a) CRT monitor works in the same way as a television.

(c) capture of food and movement.

(a) False

(b) True

(c) True

(d) True

The stomach is a thick – walled bag. Its shape is like a flattened ‘J’ and it is the widest part of the alimentary canal. It receives food from the food pipe at one end and opens into the small intestine at the other end. The inner lining of the stomach secretes mucous, hydrochloric and digestive Juices. The mucous protects the lining of the stomach. The acid kills many bacteria that enter along with the food and makes the acidic medium in the stomach which helps the digestive juices to act. Here the digestive Juices break down the proteins into simpler substances.

(a) kills the harmful bacteria that may enter along with the food. 

(c) absorb the digested food. 

(iii) small intestine

1. Bile Juice is stored in a sac called gall blader. 

2. The digestive Juices break down the proteins into simpler substances. 

3. The finger-like out growths in small intestine are called as villi. 

4. The part of the stomach in ruminalts is known as rumen. 

5. In Amoeba, the food becomes trappef in a food vacuole. 

6. Amoeba is a microscopic single-celled. 

7. The greass is rich in cellulose.

The cows, buffaloes and other grass eating animals chewing continuously are called ruminants. They quickly swallow the grass and store it in a part of the stomach called rumen. Here the food gets partially digested and it is called cud. Later the cud returns to the mouth in small lumps and the animal chews it. This process is called chewing the cud or rumination and these animals are called as ruminants. The grass is rich in cellulose.

Cellulore (Ca type of carbohyderate) can be digested by ruminants but not by humans because ruminants have a large sac-like structure called rumen between the oesophagus and the small intestine. The cellulose of the food is digested here by the action of certain bacteria which are not present in humans.

B) Rabindranath Tagore

The inner walls of the small intestine have thousands of finger-like outgrowths. These are called villi (singular villus).
The villi increase the surface area for absorption of the digested food. Each villus has a network of thin and small blood vessels close to its surface. The surface of the villi absorbs the digested food materials.

In the cells, glucose breaks down with the help of oxygen into carbon dioxide and water, and energy is released.

Cellulose (a type of carbohydrate) can be digested by ruminants but not by humans because ruminants have a large sac-like structure called rumen between the oesophagus and the small intestine. The cellulose of the food is digested here by the action of certain bacteria which are not present in humans.

1. Similarity: The basic process of digestion of food and release of energy is the same in amoeba as ell as in human beings. In amoeba, Digestive juices are secreted into the food vacuole. They act on the food and break it down into simpler substances. Gradually the digested food is absorbed. Similarly, in human beings various digestive juices (mouth, stomach, intestine etc.) act on food and break it down to simpler substances.
2.Difference: The digestion process in amoeba is simple while in human beings it is a complex process. he process of ingestion and egestion are also quite different. Amoeba engulf its food by surrounding the food particle with its pseudopodia. The undigested food which is largely carbon dioxide gas is expelled outside by the vacuole. While in human beings, the food (which is complex substance) is taken inside the mouth and undergoes a complex process of digestion and absorption. Finally the undigested food it expelled in the form of faeces.

Similarity: Both Amoeba and humans require energy for the growth and maintenance of their bodies. This energy is derived from the food they eat. The food is in a complex form and is therefore broken down into simple forms by the process of digestion. Both these organisms are heterotrophs as they derive their food from other plants or animals.

Difference : Human beings have complex structure for the ingestion, digestion and egestion of food while Amoeba has simple process in which it engulfs the food with the help of pseudopodia and traps it in food vacuoles.

Liver (the largest gland in human body) secretes bile juice that is stored in a sac called the gall bladder.
The bile helps in the digestion of fats.

(a) Digestion of starch starts in the stomach. (False)
(b) The tongue helps in mixing food with saliva. (True)
(c) The gall bladder temporarily stores bile. (True)
(d) The ruminants bring back swallowed grass into their mouth and chew it for some time. (True)

The number of canines in buccal cavity is 4.

Number of incisors in Buccal cavity of human being is 8

Correct option is B) 1918

D) Triple alliance – 1907

A) France – 1949

C) First World War – 1939 to 1945

C) 1^st February, 1918

The walls of oesophagus contracts which helps in movement of food down.

C) Attack on Pearl Harbour by Japan

The process of taking food inside the body is called ingestion.

There are four types of teeth:

Incisor

Canine

Molar

Premolar

Types of teeth and their functions: 

1. Incisors – Your incisors are eight teeth in the front center of your mouth (four on both bottom and top). Incisors are the teeth that you use to bite into your food.

2. Canines – You have four of them and they are your sharpest teeth, used for tearing apart food.

3. Premolars – Premolars are used for tearing and crushing food. Unlike your incisors and canines, premolars have a flat biting surface. You have eight premolars in total.

4. Molars – Your molars are your largest teeth. Their function is similar to that of the premolars, to grind, tear, and crush food.

A part of our body which has digestive juice stomach

D) Bismarck’s aliance with Austria – 1907

D) New forms of art like movies did not emerge.

• Within the territories of the empire there lived diverse people. 
• In the Alpine regions the aristocracy were predominently German – speaking. 
• In Lombardy and Venetia people spoke Italy. 
• In Galicia people spoke Polish. Bohemians, Slovaks, Slovens, Croats and Roumans were certain ethnic groups. 
• The majority of the population was made up of the peasantry. 
• Vast estates were there and they were cultivated by serfs. 
• Trade and industry developed, commercial classes emerged due to these developments. 
• A group of new middle class emerged due to the access to education and new ideas.

a) All the above 

b) army 

c) aristocrats, tenants.

• It is said that whenever France sneezes Europe catches cold. 
• After the great French Revolution of 1789, France was acknowledged the leader of the progressive opinion in Europe.
• The 1830 revolution raised national spirit in the countries like Belgium, Germany, Italy, Spain, Portugal, and Poland. They led the movements for achieving National Independence.
• The rising tide of revolution in different countries became the cause of fear among the autocrat rulers. They joined to check the spread of the revolution.
• The main gift of French Revolution was the ideas of Liberty, Equality, and Fraternity. 
• It ended the dominance of the theory of the divine right of kingship.
• It give death blow to social status by birth. The clergy and nobles lost their supremacy, dominance over polity and other sections of society. 
• The clergy and the noble were devoid of their privileges in society.
• The Third Estate and the middle class were relieved from serfdom and the burden of over taxation.

Parliamentary Party :

 The parliament had now a better army in so much that if the Earl of Essex had immediately followed the king of Oxford, not yet well fortified, he might in all likelihood have taken it. For he could not want either men or ammunition. Whereof the city of London, which was wholly at the parliments devotion, had store enough.

Kings’ Party : I cannot judge that. But this is manifest, considering the estate the king was in at his first marching from York, when he had neither money nor men nor arms enough to put them in hope of victory, that this year, take it altogether, was very prosperous.

Tooth decay occurs when the pH of the mouth falls less than 5.5. The bacteria present in the mouth degrade the food remaining in the mouth after eating and produce acids. These acids lower the pH of the mouth, causing tooth decay. 

Toothpastes are basic in nature, and therefore cleaning the teeth with toothpastes would result in neutralization of excess acids. Thus toothpaste prevents tooth decay.

Nail polish contains acetone which absorb heat energy from our body and evaporates. So the body temperature decreases. So we feel cool when nail polish applied to nails.

Generally, bacteria are found in our mouth but these are not harmful for us. But if we do not clean teeth regularly after the meals, a large number of bacteria will grow in mouth. These bacteria decompose sugar present in food caught between the teeth and changes it to acid. This acid cause harm to teeth gradually, it is known as tooth decay. If it is not cured within time, it causes unbearable pain in teeth and finally teeth falls. Chocolate, cold drinks, sweet food etc, are responsible for it. Therefore, every person should brush their teeth twice a day and gargle after every meal. We should not put dirty finger and unwashed substance in our mouth.

(i) Strict quality control law should be enforced. Not only such factories should be closed, people running such factories should be severely punished. These factories should be blacklisted and photographs of owners should be published in all leading newspapers. 

(ii) Many paints contain lead which is poisonous. 

(iii) Use of polythene bags should be banned because it is not biodegradable. It may, therefore, pile up as waste and swallowed by animals causing death or choke the sewer. 

(iv) Advantages of synthetic fibres. 

(a) Strong 

(b) Easy to wash and wear (need no ironing) 

(c) can be stretched easily to different sizes like nylon socks. 

(d) Available in variety of colours. 

(e) Generally cheaper than natural fibres. 

(f) do not shrink. 

Disadvantages of synthetic fibres. 

(a) does not absorb moisture/sweat keeping the heat trapped in the body. 

(b) Give uncomfortable feel for being used as underwears 

(c) Catch fire or melt more easily than natural fibres. 

Advantages of natural fibres. 

(a) Clothes made from natural fibres are more comfortable because they can absorb moisture/sweat.

(b) As they are natural materials, they are harmless to environment. 

(c) They are fire-resistant. 

Disadvantages of natural fibres, 

(a) More expensive 

(b) Need ironing as they are not crease-resistant. 

(c) Might shrink on aggressive washing.