• According to Lenz’s law:-The polarity of the induced emf is such that it tends to produce induced current in such a direction that it opposes the change in magnetic flux that produced it.
• The (-) ive sign in given equatione= (-) (dΦ/dt)tells about the direction.

There are following components of health related fitness :

1. Body Composition
2. Cardio-respiratory Endurance
3. Flexibility
4. Muscular Endurance
5. Muscular Strength
6. Body Composition: The body composition means the amount of fat-free body weight. It is well known that a high percentage of body fat in relation to the total body weight is harmful and may lead to obesity. From the health point of view, the normal percentage of body fat for young men and women should not exceed 15 and 25 per cent, respectively. Various methods for measuring body composition can be used by individuals, such as under water weighing, skin fold measurements and anthropometric measurements. It means that for health related fitness an individual should have ideal body weight and fat percentage.
7. Cardio-respiratory Endurance : It is the maximum functional capacity of the Cardio-respiratory system to carry on the work or physical activity involving large muscle group over an extended period.
8. Flexibility : Flexibility is an important component of health related fitness. It is the range of movements of joints. It is important for all individuals in daily life. It can be classified into : passive flexibility and active flexibility. Active flexibility can be further classified into : static flexibility and dynamic flexibility.
9. Muscular Endurance : Muscular endurance is the ability of a muscle or muscle group to repeat muscular contractions against a force or to carry on contraction over a maximum period.
10. Muscular Strength : Muscular strength is the maximum amount of force that can be exerted against some form of resistance in a single effort.

Importance of healthy/ positive lifestyle are:

1. Increase the longevity:  A healthy lifestyle increases the longevity. It slows down the ageing process and helps the older person to stay strong and healthy.
2. Increase the level of energy: An individual with a healthy lifestyle feels more energetic which means more productivity in day to day living.
3. Helps in reducing depression: Healthy lifestyle helps in accomplishing a healthy body which in turn elevates hormone level in the body that regulators the mood.
4. Increase the level of Physical fitness:  Physical fitness helps in better coordination of muscles and an increase in strength, flexibility and endurance.
5. Increase self-confidence: Level of fitness of an individual tends to become more self-confident and self-aware.

Meaning of Physical fitness: Physical fitness means the capacity to do the routine work without any fatigue or exertion and after doing the work the person has power to do some more work and recovery is quicker.
Wellness: Wellness is the capacity of an individual by which he leads a balanced life
Life style: A way of life or style of living that reflects the attitude and values of a person or group 

Meaning of Physical fitness: Physical fitness means the capacity to do the routine work without any fatigue or exertion and after doing the work the person has power to do some more work and recovery is quicker.
Wellness: Wellness is the capacity of an individual by which he leads a balanced life

• An atom consists of heavy positively charged nucleus. The whole mass of the atom is concentrated in the nucleus.
• The electrons in an atom revolve around the nucleus in definite circular paths called orbits or energy level.
• Each energy level is associated with definite amount of energy.
•  The change in energy takes place when electron jumps from one energy level to another energy level.

Format for Speech Writing - In order to write a perfect speech, we must be well acquainted with the topic and must possess a wide range of vocabulary, a thorough knowledge of the subject, some research, and excellent organizational skills. Here are the ideal format and tips to help you write your perfect speech.
A perfect speech must consist of:-

1. HEADING- The heading should be catchy and in not more than 5-6 words. You can go as creative as you want with this one just make sure you do not devote too much time to it in the exam.
2. OPENING LINE- This includes salutations, introduction, and the topic. Make sure you do not mention your personal details (name, school name, etc.).

Example- Respected Principal, teachers, and my dear friends! Today, I (the name is given in the question) stand before you all to speak on the topic “(given in the question)”.
OR you could start with a quote related to the topic and then go with the salutations and introduction.

1.  BODY- It is the main part of your writing piece.
2. It is always prescribed that you begin with a short introduction on the topic, it’s meant to be precise. 
3. Then you need to explain the current situation, the problems (if any), and whether after any corrective actions, betterment in the situation has been observed or not.
4. It may include advantages/ disadvantages depending upon the topic in question.
5. Now here, it is important you follow a sequence. It is possible that you have too many points or very few points. When you have a lot of varied points, it is better you choose a few best ones and write a line on each. In case you have very few already, explain them in at least two lines each.
6. You have to strictly follow the prescribed word limit in a limited time frame so just do not go on writing and writing.
7. MOST IMPORTANT- Always begin with your strongest point. You can accommodate the weaker ones in between and end with another strong point.
8. Feel free to give your personal opinion in one or two lines.
9. It is very important that you do not deviate from the topic. There are chances you may get ideas linking from one to another that may deviate you from the main point. You have to refrain from doing so.
10. SOLUTION/CONCLUDING PARAGRAPH- Now, it is to be remembered that wherever you elaborate a problem, you always have to mention the steps being taken to improvise the situation and suggest a few solutions as well.

Now, it would be great if you could add a few quotes relating to motivating the people to take action.
Here also, the rule of STRONG-WEAK-STRONG applies.

Advantages and benefits are same

• Life-line of a nation: No country can progress without the development of entrepreneurship. Every country is trying to promote its trade so that it is able to share the benefits of development. Therefore, entrepreneurship is the yardstick to measure the level of development of a country.
• Provides innovation: Entrepreneurship provides new ideas, imagination and vision to the enterprise. An entrepreneur is an innovator as he tries to find new technology, products and markets. He increases the productivity of various resources. The entrepreneur stands at the centre of the whole process of economic development. He conceives business ideas and puts them into effect, to enhance the process of economic development.
• Change of growth /Inclusive growth: An enterprise operates in a changing environment. The entrepreneur moulds the enterprise in such a changing environment. The latter moulds not only the enterprise, but also alters the environment itself, to ensure the success of the enterprise. In order to meet the challenge of automation and the complexities of advanced technology, there is a need for the development of entrepreneurship.
• Increased profits: Profits can be increased in any enterprise, either by increasing the sales revenue or reducing cost. To increase the sales revenue is beyond the control of an enterprise. Entrepreneurship, by reducing costs, increases its profits and provides opportunities for future growth and development.
• Employment opportunities: Entrepreneurship and its activities provide the maximum employment opportunities. More entrepreneurs provide more opportunities to large numbers of people which benefits growth of country. The growth in these activities bring more and more employment opportunities.
• Social Benefits: Entrepreneurship benefits both business enterprise and to the society at large. It raises the standard of living by providing good quality products and services at the lowest possible cost. It also makes the optimum use of scarce resources and promotes peace and prosperity in the society.

River Rafting

• River rafting is another adventure sport. It is a river journey under taken on a raft or boat made of inflatable material. The difficulty of river rafting is from grade I to VI. 

• Life-line of a nation: No country can progress without the development of entrepreneurship. Every country is trying to promote its trade so that it is able to share the benefits of development. Therefore, entrepreneurship is the yardstick to measure the level of development of a country.
• Provides innovation: Entrepreneurship provides new ideas, imagination and vision to the enterprise. An entrepreneur is an innovator as he tries to find new technology, products and markets. He increases the productivity of various resources. The entrepreneur stands at the centre of the whole process of economic development. He conceives business ideas and puts them into effect, to enhance the process of economic development.
• Change of growth /Inclusive growth: An enterprise operates in a changing environment. The entrepreneur moulds the enterprise in such a changing environment. The latter moulds not only the enterprise, but also alters the environment itself, to ensure the success of the enterprise. In order to meet the challenge of automation and the complexities of advanced technology, there is a need for the development of entrepreneurship.
• Increased profits: Profits can be increased in any enterprise, either by increasing the sales revenue or reducing cost. To increase the sales revenue is beyond the control of an enterprise. Entrepreneurship, by reducing costs, increases its profits and provides opportunities for future growth and development.
• Employment opportunities: Entrepreneurship and its activities provide the maximum employment opportunities. More entrepreneurs provide more opportunities to large numbers of people which benefits growth of country. The growth in these activities bring more and more employment opportunities.
• Social Benefits: Entrepreneurship benefits both business enterprise and to the society at large. It raises the standard of living by providing good quality products and services at the lowest possible cost. It also makes the optimum use of scarce resources and promotes peace and prosperity in the society.

Biology creates an awareness of vast array of forms of life which normally goes unseen. Biology offers a large scope and provides a large field for study.

(1) Helps us to understand ourselves better : It unfolds different queries of life alongwith its cultural, social, philosophical and economical aspects. So it helps in understanding the life better.

(2) Biology and inter-relationship of living beings : Study of biology helps us in understanding the wonderful phenomenon and laws of nature which finally tell us to predict the behaviour of different living beings under changed conditions.

(3) Biology and resources : Biology helps us to know how to tap and conserve the resources available to us e.g. fishes, birds, forests etc.

(4) Biology and literature : Knowledge of Natural Biology has greatly enriched the literature with their references in stories and poems etc. Poets and other authors have been inspired by the beautiful and interesting plants and animals and frequently figure them in stories, poems and dramas.

(5) Study of nature is a rewarding experience : Many plants like Narcissus, Dahlia, Gloriosa, Roses, Marigold, Aster, etc. are used for ornamental purposes. The variety available in animals is widely enjoyed in zoological parks. Students enjoy excursions to remote places watching never seen before plants and animals.

(6) Solving problems : Biology makes us to understand the present day problems such as population growth, pollution, conservation of wildlife and survival of man etc. The future directions of biotechnology, conservation of biodiversity, maintenance of environment  and human welfare remain in the hands of biologists.

(7) Biology-Medicinal aspect : Several plants like Atropa belladona, Cinchona are sources of atropine, quinine etc. Many members of fungi such as Penicillium and Streptomyces give rise to antibiotics like penicillin and streptomycin. Plants are the major source of vitamins. Drugs are first tested on animals before being used for treating man. Animals provide scientific hints for the production and use of medicines. Animals are widely used for scientific research and results thus obtained are finally applied to man. The study of animal play an important role in health, nutrition and control of pests. Many diseases like malaria are caused and transmitted by animals.

(8) Solving approach of biology : Knowledge for eradication of diseases like malaria, small pox, etc. have been achieved by scientists basically due to desire and determination to solve the problem.

(9) Ecosystem and living organisms : Biology helps us in understanding the various ecosystems. The living community and non-living environment interact with each other and exchange of material in them takes place.

(10) Biotechnology : Biotechnologists have produced many genetically modified (GM) crops. Plenty of studies are being made by geneticists, evolutionists and cytologists to fudge the efficacy of biotechnology.

We plant trees in plantations for  various reasons, including maintaining water sources, upgrading soil quality, improving climate, supplying construction timber and wood energy, providing shelter for livestock, and furthermore, for social advantages, cultural and traditional conservation and for beautifying the landscape.Tree planting along the boundary  of large fields and the homestead is useful for strong live fences, windbreaks, wood energy and other complementary products such as fodder.Planting trees along the road provides various advantages such as shade, beautification of the landscape, a good and clean climate, prevention of soil erosion, drainage, prevention of dust from flying onto people houses, and providing wood for various use.Planting trees in public places,  such as hospitals,  schools, pagodas and public gardens provides particular advantages such  as shade and beauty,  which is very beneficial to all people.Forest cover can help prevent  erosion, and the roots of trees growing along waterways  are useful for holding and preventing the banks from collapsing. Waterways with no trees or plants growing on their banks suffer from high levels of soil erosion, which in the long run  will widely deplete the cultivable and residential land. Therefore, there should be urgent measures for tree planting to protect the area from  soil erosionThis increases the amount of fodder for raising animals. Fodder trees are fast growing on  all types of land, they  tolerate arid soil, are easy to plant, and highly productive. More significantly, planted fodder trees can be advantageous for fencing and beautifying the homestead. Strong winds, storms and floods more often devastate open areas than forests. Storms or floods do not only destroy infrastructure and houses but they also destroy agricultural products. The most successful approach for prevention is to plant trees as barriers.

Answer:
The narrator’s grandmother was terribly old. She could not appear young and beautiful. Her face was a criss-cross of wrinkles. She was short, fat and slightly bent. The very idea of her being young and pretty did not appeal to the mind.

The term junk food means a food do not good to the body health in anyway. It is less nutritional and harmful to the body systems. Most of junk foods contain high level of saturated fats, sugar, salt and bad cholesterol which are toxin to the health. They become lack of dietary fibers so easily get involve in causing constipation and other digestive disorders. Junk foods have gained so much popularity because of the nice taste and easy to cook. There are many readymade junk foods available in the market packed in the polybags. Most of the people are depend on such readymade foods because of their busy schedule or they do not know to cook food at home.

The consumption of junk food all over the world is increasing day by day which is not good for the future. People of all age groups like to eat junk food and they generally chose to eat whenever they enjoy special time with family like birthday party, marriage anniversary, etc. They easily become used to of taking soft drinks, wafers, chips, noodles, burgers, pizza, french fries, Chinese dishes, and other varieties of fast food available in the market.

SPORTS AUTHORITY OF INDIA (SAI)

1)It is established by Indian government on 1984.

2)It is the top national sport body of India.

3)Sai has 2 sport academic institutions.

4)Sai headquarters are in Jawaharlal Nehru Stadium (Delhi), Lodhi Road, Delhi, India.

5)SAI runs following two academic institutes that run graduate and post-graduate courses in sports medicine, sports and physical education to prepare coaches and allied sports support staff

6)In 1983 a department of sport science was also developed.