SOLUTION

1- Ouroboros

2- Mandala

3- Ashok Chakra

4- Wheel of Fortune

SOLUTION

1. Asleep at the wheel- not paying attention

2. Set the wheels in motion- to perform a series of action to make a work easier.

3. Oil the wheels- to make something easy to happen

4. Cog in the wheel- a part of large system

SOLUTION

a)Tata Group

b)Reliance Industries

c)Sony

d)Haldiram’s

e)Amul

f)Google Incorporation

SOLUTION

Google Incorporation earns most of its profits from Ad Words.

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The headquarter of Sony Corporation is in Minato, Tokyo, Japan.

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The word amul is derived from the Sanskrit word - amulya, meaning invaluable.

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Amul is an Indian dairy cooperative, based at Anand in the state of Gujarat, India.

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Jamsetji Tata founded a trading company in 1868 with an investment of Rs. 21,000 capital.

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Business is to provide goods and services to customers for a profit.

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Sony Corporation, commonly referred to as Sony, is a Japanese multinational corporation headquartered in Minato, Tokyo, Japan.

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Reliance Industries deal in polyester, fibre intermediates, plastics, petrochemicals, petroleum refining, oil and gas exploration and production, retail and special economic zones.

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The Tata Group is an Indian multinational company headquartered in Mumbai, India. The major Tata companies are Tata Steel, Tata Motors, Tata Consultancy Services, Titan Industries, Tata Communications and Taj Hotels.

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Overcrowding of people has put pressure on the existing social and physical infrastructure in the urban areas. Due to over exploitation of natural resources cities are facing an acute problem of ground water depletion, air pollution, disposal of sewage and management of solid waste.

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Migration leads to redistribution of population within a country. Migration of rural population to urban population is the main reason for contributing population growth in urban areas.

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In 2002, India received US $11 billion as remittances from international migrants. Punjab, Kerala and Tamil Nadu received very significant amount from their international migrants.

SOLUTION

answers may vary.

SOLUTION

1. False
2. True
3. True

SOLUTION

1. Migration
2. Nomad

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Factors which cause people to leave their place of residence or origin are called as push factors of migration.

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SOLUTION

Indian migration can occur in four ways:

1. Rural to Rural migration
2. Rural to Urban migration
3. Urban to Urban migration
4. Urban to Rural migration

SOLUTION

Poverty, high population pressure on land, lack of basic infrastructure facility, education etc.

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Human migration affects the status of women directly and indirectly. In rural areas, male selective migration leaving their wives behind puts extra physical as well as mental pressure on them.

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We should close the bank account at the earlier residing place before relocating permanently to a new place.

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Nomads are the group of people who do not live in a permanent house whereas migrants are the group of people who move from one place to another in search of a permanent or semi-permanent residence.

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SOLUTION

1) Internal migration within the country.

2) International migration or migration from the native country to another country.

3) International migration into the country from another country.

SOLUTION

Human Migration is the physical movement by humans from one area to another, sometimes over long distances and in large groups.

SOLUTION

Not enough jobs and natural disasters are some of the factors responsible for people to leave their dwelling places.

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Push factors are those factors that cause people to leave their place of residence or origin whereas pull factors are those factors which attract people from different places.

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Diabetes and heart ailments are two of the hereditary diseases.

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a. False

b. True

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Nose is being use in the given picture to smell the fragrance of a flower.

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The sense organ shown in the picture is an ear. It helps us in hearing sounds.

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Skin is the sense organ that is being used in the given image. Skin senses the touch.

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Sense of sight is being used in the given image.

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Sometimes children want to eat only a particular food item that is their favourite and show a strong dislike for other foods. This is called food jag.

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Answers may vary

Hint:

SOLUTION

The factors which influence our likes and dislikes are as follows:

• Living in diverse regions
• Climate of a place
• Food that grows in a place
• Culture and customs of the people

SOLUTION

The culture and the region to which a person belongs, determine his or her likes and dislikes.

SOLUTION

The people living in coastal regions depend on sea foods and rice while those on land depend mostly on corn, wheat and cereals for their staple diet. Likewise, people living in cold climate regions mostly depend on poultry, meat and soups while those living in hot climate regions mostly depend on cereals and meat.

 It is because specific crops can grow only in a certain geographic location and this in turn determines the availability of food in a particular geographical region. People mostly depend on locally grown crops and plants and the available animal products for their staple food. 

SOLUTION

The people of different countries have different styles of eating. For example, most of the Indian foods are eaten by hands.  However, the people in European nations mostly use cutlery such as knife and fork to eat their food.

People of Chinese culture use chopsticks to eat their food. All these examples states that the diversity in the eating habits of people always differ from one ethnic group to another and from one country to another.

SOLUTION

A community or an ethnic group differs from others because people in different parts of the country have their own cuisines, art and dance forms and eating habits.

Different types of geography, environment, cultural traits and upbringing influence the customs and traditions of different communities. Moreover, the diversity in the eating habits differs from one ethnic group to another and from one country to another.

SOLUTION

Sometimes the culture and customs of people also influence their likes and dislikes. For example, Gurneet lives in Punjab. She loves to have makki ki roti and sarson ka saag along with lassi. However, her best friend, Sandhya lives in Kerala and her favourite food is rice and sambhar and she dislikes the oily and heavy sarson ka saag and lassi. This clearly indicates that different geographic locations influence our likes and dislikes.

SOLUTION

We all have likes and dislikes. All of us like the fragrance of rose, but most of us do not like the smell of garlic. Similarly, we may like the taste of chocolate much better than the taste of bitter gourd.

Also we prefer looking at a flower than at a thorny cactus. We enjoy listening to music but get irritated on listening to blaring horns. All of these are decided by our senses. The eyes see things around us, the ears listen to sounds, the nose smells, the tongue tastes and the skin feels. So whatever these sense organs observe, they instruct us on what we should like and dislike.

SOLUTION

Undigested and waste food in the small intestine goes into the large intestine.

SOLUTION

Absorption of food takes place in the small intestine.

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Stomach releases the gastric juices in the body and churns the food to make a thin paste.

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The heart pumps the blood to all parts of the body.

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We touch and feel the things around us with the help of our skin.

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Small intestine: It helps in absorbing the materials that our body needs from the food we eat. It has many thin blood vessels in which all the digested nutrients get absorbed. These nutrients are then carried to all parts of the body.

Large Intestine: After the digestion, the undigested food moves forward into the large intestine. It helps in absorbing water and throwing out the waste from our body.

SOLUTION

The world's smallest guitar is 10 micrometers long and It is about the size of a single cell.

SOLUTION

The electronic drum usually consists of a set of pads mounted on a stand similar to an acoustic drum kit. Each pad has a sensor that generates an electric signal when struck. The electric signal is transmitted through cables into an electronic module which produces a sound associated to the selected pad.

SOLUTION

A sound synthesizer is an electronic instrument capable of producing a wide range of sounds. It may either imitate other instruments or generate new timbres.

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An electronic keyboard is the black and white piano style keys. When it is pressed by the player, it triggers the electronic note or other sound.

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A musical instrument that uses electronics to produce its sound is known as an electronic musical instrument.

SOLUTION

a)Keytar

b)Synthesizer

c)Eigenharp

d)Electrical keyboard

e)Electronic drum or Octave

f)   Guitar

SOLUTION

a)Egomania

b)Plutomania

c)Mythomania

d)Logomania

e)Bibliomania

SOLUTION

a)True

b)True

c) False

d)True

e)True

SOLUTION

SOLUTION

Answer may vary

SOLUTION

SOLUTION

a)Theophobia

b)Arachnophobia 

c)  Acrophobia   

d)Cynophobia   

e)Gephyrophobia   

SOLUTION

a)True  

b)True

c)  False  

d)True  

e)True  

SOLUTION

Â

Hints:

1.  An abnormal fear of dogs.

2.  An abnormal fear of bacteria.

3.  An abnormal fear of bathing.

4.  An extreme fear of heights.

5.  Fear of water.

6.  An unnatural fear of darkness.

SOLUTION

Answer may vary

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Sojourner was the first robotic rover (land exploration vehicle) to successfully reach another planet that is Mars via Mars pathfinder in 1997.

SOLUTION

Salyut I was the world's first space station launched by USSR in 1971. It was abandoned after its first crew died while returning.

SOLUTION

Chadrayaan I was the unmanned spacecraft launched by India in 2008.

SOLUTION

Arteries are red in colour and have thick walls. They carry pure blood from the heart to all parts of the body. This blood contains digested food, water and oxygen.

The veins are blue in colour and have thin walls. They collect impure blood from all parts of the body to the heart. This blood carries waste materials and carbon dioxide.

SOLUTION

It is our heart that beats all the time and pumps blood to all parts of the body.

The heart lies in the middle, slightly left side of our chest. It is a red-brown muscle, which pumps blood through blood vessels- arteries and veins.

SOLUTION

The stomach is like a muscular bag which lies inside our belly. It helps us in the process of the digestion.

Stomach wall releases digestive juices which get mixed with food and churned by our stomach. Due to this churning, the food gets converted into a paste.

SOLUTION

Brain receives the signals from our sense organs and tells us what to do. It also stores information in the form of the memory bank and controls our balance, posture and coordinates our body movements.

SOLUTION

The human body has two pairs of limbs – the fore limbs or the arms and the hind limbs or the legs.

The upper arm, lower arm, wrist and hand are the parts of a fore limb.

The fore limbs or the arms are joined to the trunk by the shoulder girdles and collar bones. The upper arm has only one bone while the lower arm has two bones.

Our two legs are known as hind limbs which bear the weight of the whole body. The uppermost part of the hind limb is called thigh, which has the powerful thigh bone – femur. It is the longest bone of our body. The upper leg or thigh is connected to the lower leg at the knee joint. It is an important joint present in the hind limbs.

SOLUTION

1. Kidneys
2. Kidneys are located in the upper abdominal area against the back muscles on both the side of the body.
3. These are a pair of filters that clean and purify our blood and remove excess fluid and waste products from the body.
4. In this case, doctors can clean the patient’s blood by using a machine (dialysis) or they can transplant a new kidney into the patient’s body.
5. The wastes which are filtered by our kidneys later get collected into the urinary bladder and from there, it is excreted out as urine. The bladder is connected to the kidneys through two pipe-like structures called ureters.

SOLUTION

1. Liver: It is the largest internal organ of the body.
2. It is located in the right side of the abdomen and is protected by the lower right ribs.
3. Do regular exercise, always eat healthy food, drink lots of water and avoid drinking alcohol to keep the liver healthy.

SOLUTION

SOLUTION

SOLUTION

Yes, animals also have sense organs. For example, dogs are well known for their excellent sense of smell and their keen sense of hearing.

SOLUTION

All our sense organs can help us. Apart from reading, hearing, we can learn from incidents too.

SOLUTION

Eyes and ears help us in that. Our sense of smell sometimes tells us that we are near a market or a garden.

SOLUTION

No, our other senses also help us to recognize things every time.

SOLUTION

a. to know that the day is hot or cold

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We listen to our friends, observe their reaction and act accordingly.

SOLUTION

c. ears, eyes

SOLUTION

b. No, few animals don't have five sense organs.

SOLUTION

b. Yes, when in trouble, sense organs help us to understand the situation.

SOLUTION

c. tongue doesn't help us to recognize a friend

SOLUTION

Yes, the fragrance effects the taste of food.
 

SOLUTION

Knowledge, wisdom, skills or ideas are some of the acquired traits.

SOLUTION

The given picture shows identical twins.

SOLUTION

Polio is a non-hereditary disease.

SOLUTION

The given picture shows non-identical twins.

SOLUTION

Yes, this is possible because it is not necessary that all twins should be identical in every aspect.

SOLUTION

The hereditary diseases are the diseases which are inherited genetically. They are transferred from the parents to their off-springs. Some of the hereditary diseases are – haemophillia and thalessemia.

SOLUTION

It means that he or she has inherited this trait of singing from someone in his or her family.