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Answer: 

n,n+4,n+8,n+12,n+16 be  integers.
where n can take the form 5q, 5q+1 ,5q+2 , 5q + 3 , 5q + 4.
Case I when n=5q
Then n is divisible by 5.
but neither of  5q+1 ,5q+2 , 5q + 3 , 5q + 4 is divisible by 5.
Case II when n=5q+1
Then n is not divisible by 5.
n+4 = 5q+1+4 = 5q+5=5(q +1),
which is divisible by 5.(else not)
Case III when n=5q+2
Then n is not divisible by 5.
 n+8 = 5q+2+8 =5q+10=5(q+2),
which is divisible by 5.(else not)
Case IV when n=5q+3
Then n is not divisible by 5.
 n+12 = 5q+3+12 =5q+15=5(q+3),
which is divisible by 5.(else not)
Case V when n=5q+4
Then n is not divisible by 5.
 n+16 = 5q+4+16 =5q+20=5(q+4),
which is divisible by 5.(else not)
Hence, one of n, n+4,n+8,n +12 and n+16 is divisible by 5.

Correct answer is: (c) 3

147/120 = 49/40 = 49/2³ x 5

Three decimal places

The given numbers are 520 and 468. 

The smallest number which when increased by 17 is exactly divisible by both 520 and 468 is obtained by subtracting 17 from the 

LCM of 520 and 468. 

Prime factorisation of 520 = 2 × 2 × 2 × 5 × 13 

Prime factorisation of 468 = 2 × 2 × 3 × 3 × 13 

LCM of  520 and 468 = 2 × 2 × 2 × 3 × 3 × 5 × 13 = 4680. 

Smallest number which when increased by 17 is exactly divisible by both 520 and 468 = 4680 – 17 = 4663.

Honey is produced by Honey bees.

Cabbage, cauliflower

The major problems of Cole crops are: 

• Insect pests: Diamond back moth, aphids and cabbage butterfly 
• Diseases: Black rot 
• Disorder: Riceyness, whiptail and buttoning.

Diamond  is an insulator .

The unit of rate constant of 1^st order reaction is Time^–1

i. After post-graduation in vegetable science the student becomes eligible to be appropriate for employment offered by seed companies, sales and marketing, R&D unit etc.

ii. Different agricultural universities also employ horticultural postgraduates for distinct posts from the concerned field of their specialization as SRF’s (Senior Research Fellow), RA (Research Associates), TA (Technical Assistant) etc.

iii. However, for the posts of Assistant Professor/Scientist and other teaching and research and development posts.

iv. Administrative or marketing positions with organizations involved in the processing and marketing of vegetables, they also get recruited in the companies as horticulturists, gardeners, supervisors, farm or estate managers, handling large-scale production of certain varieties of vegetables in various private seed companies etc.

v. Many fertilizer and pesticide companies engage agricultural/ horticultural students in their firms.

In addition, at the International level, the Food and Agriculture Organization (FAO) of the United Nation and some other agencies also appoints horticultural consultant.

Nursery is a place where seedlings, cuttings and grafts are raised with care before transplanting. Advantage of raising seedlings in nursery. It is very convenient to look after the tender seedlings. It is easy to protect the seedlings from pests and diseases. Some of them specialize in one phase of the process: propagation, growing out, or retail sale; or in one type of plant: e.g., groundcovers, shade plants, or rock garden plants.

 Zn is  hcp crystal structure.

Broccoli is an edible green plant in the cabbage family whose large flowering head is eaten as a vegetable. There are three commonly grown types of broccoli. The most familiar is Calabrese broccoli, often referred to simply as "broccoli", named after Calabria in Italy. It has large (10 to 20 cm) green heads and thick stalks. It is a cool season annual crop. Sprouting broccoli has a larger number of heads with many thin stalks. There are some varieties related to sprouting broccoli like Pusa KTS-1, Palam Samridhi, Palam Haritika, Punjab Broccoli-1.

Hybrid varieties can play a vital role in increasing total production and productivity due to their high yield potential, early maturing, superior quality, disease and pest resistance. The rapid increase in productivity per unit area can be achieved by the use of quality seeds with built in inbred and hybrid vigour along with the application of improved vegetable cultivation technologies and government policies. Hybrid tomato varieties have many advantages compared to open-pollinated varieties. Many hybrids have better fruit quality and disease resistance. With all of these advantages, many farmers prefer to grow hybrid seeds in spite of the higher input costs. India’s first triple disease resistant tomato F1 hybrid Arka Rakshak established great popularity among farmers.

Hybrid varieties in cabbage have several advantages such as high yield, earliness, improved quality, uniformity, vigorous development and also resistance to diseases and pests. Hybrid varieties account for a significant proportion of cabbage production in Turkey; however, all hybrids are foreign and are very expensive. In India IARI developed first public sector high yielding hybrid Pusa Cabbage Hybrid-1.

Plant hormones (also known as phytohormones) are signal molecules produced within plants that occur in extremely low concentrations. Plant hormones control all aspects of growth and development, from embryogenesis, the regulation of organ size, pathogen defense, stress tolerance and through to reproductive development. These hormones are very important as they determine many different attributes of a plant. Plant hormones can be natural or synthetic. The five major plant hormones are auxins, gibberellins, cytokinins, abscisic acid, and ethylene.

Correct option: (c) 18 – 21^oC 

Cucurbitaceous vegetables:

• Cucumber 
• Muskmelon 
• Watermelon 
• Bottle gourd

Crop nursery: Raising of plants from seed in a specific/defined area before final establishment in the field.

Reasons:

• To reduce mortality. 
• To reduce transplantation shock. 
• For better care

Fruit plants: Papaya, jamun, phalsa, citrus rootstock , apple rootstock, mango rootstock etc.

Weed: Any plant growing out of its proper place or where it is not wanted/ desired is called as a weed or weeds are the plants out of place in cultivated fields, lawns or orchards etc.

Harmful effects of weeds:

• Weeds reduce the economic yield by competing with main crop for water, nutrition, light, space and air.
• Weeds create difficulty while carrying out cultural practices in the field like hoeing, irrigation and harvesting.
• Several weeds act as alternate hosts to many serious pests/ diseases. They may harvour insects-pests and act as secondary hosts for spread of several diseases.
• Some weeds are injurious to animal and human health. 
• For example, Parthenium and Datura seeds are poisonous in nature and may cause allergy to human beings.

Names of weeds:

Air layering is commonly known as goottee in India.

UPH: Growing of horticultural crops in towns and cities is called as urban horticulture whereas growing of horticultural crops on the periphery of towns and cities is called as periurban horticulture.

Which one is better: In urban areas, horticultural activities are primarily restricted to kitchen gardening, landscape gardening, roof gardening, terrace gardening whereas in pre-urban localities, large scale cultivation of fruits, vegetables and flowers can be adopted. UPH is a highly profitable venture, which not only helps in increasing the food and nutritional security but creates employment opportunities to rural and urban youths, and makes our surroundings more attractive and beautiful.

Correct option: c. Chow Chow

Kitchen gardening: It is growing of fruits, vegetables or ornamentals on a piece of land near to your kitchen. Basically kitchen gardening is done for the consumption of your own family and not for commercial purposes. However, if there is availability of good land, for larger cultivation, one can use that piece of land for commercial production of horticultural crops. A well maintained kitchen garden can provide fruits, vegetables and flowers throughout the year. In kitchen garden, intensive system of planting is followed. On bunds, vegetables like carrot, radish, and in the fields cabbage, cauliflower, and dhania can be easily grown. Near the wall of house, some trailing type bean should be grown.

Among fruits, choice is limited but strawberry, Amrapali mango, Kagzi Kalan lemon and papaya can be easily grown. Similarly one grapevine can be trained to wall of house. On side rows of kitchen garden, a row of roses, gladiolus or chrysanthemum or any other seasonal flowers can be grown to make kitchen garden more attractive and to meet the demands of your family.

Red colour in tomato is due to Lycopene.

Preservation: Keeping the produce for future use is called as preservation.

Different methods of preservation are:

(I) Physical Approaches to Food Preservation

a) Asepsis and filtration 

b) Thermal Processing

Thermal processing used for preservation is usually classified as follows: 

i) Blanching:

ii) Pasteurization: 

iii) Sterilization:

c) Drying/Dehydration:

II) Chemical Preservation - Use of chemical additives such as sugars, salt, acids, spices etc.

a) High sugar preservation 

b) Use of salt/acid/spices (Pickling 

c) Use of chemical additives:

III) Biological Preservation (Fermentation)

Chow-chow is a One seeded seeded vegetable.

Preservation of fruits/vegetables using salt and vinegar is known as Pickling.

Citrus is generally propagated through T budding.

Correct answer is c. SI 

Breeder seed tag : Yellow, 

Foundation seed tag : White

Any plant growing outside its proper place is known as a Weed.

B. Spectral signature

The radiation reflected as a function of the wavelength is called Spectral signature of the surface.

An ingrowing nail is a condition in which the nail grows into the flesh on the sides and may cause infection. Excessive filing of the nails in the corners or over vigorous cutting is responsible for this condition.

Doob grass is very common for laying lawns.

4. Gamma

Gamma is the shortest waves of Electromagnetic spectrum.

Rain gauge is use for rainfall measurement. 

Mushroom cultivation has requirement for production like compost, spawn, structure and shady area.

Garlic is planted through Cloves.

Correct option: a. Alternating current

Gulkand is a processed product obtained from Rose.

Correct answer is c. Bio-gas

Under NAPCC for regulation and management of ground water by adapting various techniques to help farmers and clean the environment.

It is an effective way by awarding gift vouchers after the services by the client and can be redeemed against future services or treatments.

Jam is cloudy, but Jelly is Transparent.

Guest sometime expects the Front office staff to resolve or at least listen such kind of complaints which are unusual and hotel cannot do anything about them. Sometime guests demand something that simply is unwarranted or impossible to deliver.

Examples:

1. Guest may complain about the absence of a swimming pool 

2. Lack of public transportation

Hotels generally have little or no control over the circumstances surrounding unusual complaints. Front office management should alert front desk agents that on occasions guest may complain about things the staff can do nothing about them. Through such orientation, staff will be better prepared to handle an unusual situation with the appropriate guest relations techniques and avoid a potentially difficult encounter.

Correct option: c. Bio-gas

Difference between Jam and Jelly are like Jelly is made with strained with fruit juice and transparent. Jam is a not transparent but in solid prepared by pulpy fruits.

Correct option: c. Water Purifiers

Code of conduct 

• All employees in a salon are expected to conform to standards of reasonable conduct which reflect professionalism: 
• Show respect and be fair and courteous to others. 
• Do not criticize other staff or salons. 
• Be honest and always keep your word. 
• Behave in a professional manner. 
• Unlawful discrimination or harassment should not be tolerated and should be reported immediately. 
• It is inappropriate to speak about religion, politics, another person's sex life, gossip or to swear.

Once a contraindication to any treatment is diagnosed, it is important to handle the situation with tact and sensitivity. Your client may be shy and embarrassed about their condition and will appreciate if you are discrete and helpful. You should: 

a. Avoid speaking loudly about the condition.

b. Reassure the client and inform them of the available treatments. 

c. Maintain professional and caring behaviour Tolerance and Respect.

As a Beauty Therapist you will come into contact with many different people, and not always will you agree and understand many of their values. However, you must learn to recognise different values and respect the rights of anyone who thinks differently to you. It is important not to show any prejudice e.g. racial or religious intolerance. We have laws, which make it illegal to discriminate against another person on the grounds of their sex, race, disability, religion, sexual orientation or political beliefs. Confidentiality: Clients will often discuss their personal life with you. You should always be polite and listen. However, when a client confides in you, it is important to be discrete and not to repeat what the client has said. Always remember the professional nature of your relationship with the client. If possible, discourage your client from divulging extremely personal and intimate information.