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• Water 
• Minerals 
• Vitamins

Absorption of vitamin K takes place in the Large intestine

4 to 5 hours

Enamel is the hardest part in our body. It is white in color. It is a dead tissue seen in the out layer of our teeth.

The recommendation of Narashimham Committee Report was submitted in the year 1991.

From

Mast. Ajeet.

SGH High School

Meviyar kuppam

Tenkas

Tirunelveli district

20.10.2020

To

The Editor

The Hindu

New Town

Tirunelveli

Respected Sir

Subject: Requisition for more Camps on Health and Hygiene.

Recently the Health and Hygiene club of SGH High school at Meviyar Kuppam conducted a health camp in the school campus. Three doctors from the nearby Public Health Centre were kind enough to be a part of this successful camp.

I was quite shocked as the Secretary of the Health and Hygiene Club to note that most of the villagers who came that day were unaware about the importance of health and hygiene. It is also alarming to note that many of them needed immediate medical treatment.

As a well wisher of the village community in Meviyar Kuppam, I request you to publish this article in your daily so that the authorities in the Government Health Department will take the necessary steps to organize such camps frequently

Thank you

yours faithfully

Ajeet

To 

The Editor 

The Hindu

New Town

Tirunelveli

Complete the word relation Enamel: dead tissue Dentine living tissue

Pulp is the soft connective tissue seen in the pulp cavity.

1. The flowers are brightly coloured to attract insects which have smell and nectar. 

2. The pollen grains are larger in size, the exine is pitted, spiny, so they can be adhered firmly on the stucky stigma.

The milk produced from the breast during the first 2 to 3 days after child birth is called colostrum. Milk production from alveoli of mammary glands is stimulated by prolactin secreted from the anterior pituitary.

Each fragment will develop into a new individual by a specialized mass of cell. It is called regeneration. It is the ability of the lost body parts of an individual organism to give rise to a whole new organism.

Fertilization in human female occurs in the oviduct of the female genetal tract. It takes place usually in the ampulla of the fallopian tube.

The fusion of male gamete with female gamete to form zygote is called fertilization.

The secondary sex organs in the male are vas deferens, Epididymis, seminal vesicle, prostate gland and penis.

(a) Fertilization: Occurs in the oviduct of the female genital tract. It takes place usually in the ampulla of the fallopian tube. 

(b) Implantation: Blastocyst reaches the uterus (uterine wall) (endometrium)

Testosterone and Progesterone

Androecium and Gynoecium.

Ovule develops into seed. 

Ovary develops into fruit.

Correct Answer is: (b) male

(d) They are formed from gonads

The female part of the flower is Gynoecium.

(a) Generative cell

One sperm fuses with the egg (syngamy) and forms a diploid zygote. The other sperm fuses with the secondary nucleus (Triple fusion) to form the primary endosperm. After triple fusion, the primary endosperm nucleus develops into an endosperm. The purpose of carrying two gametes is, endosperm provides food to the developing embryo.

(a) Generative nucleus

(a) θ = tan^-1 (μ)

(b) if α > θ, angle of inclination of plane with horizontal, it will slide down.

(c) To keep box either stationaries or just move it up with uniform velocity

F₂ = mg sin α + f or mg(sin α + μ cos α)

(d) force applied to move box upward with acceleration a,

mg(sin α + μ cos α) + ma

The various phenomena observed in nature due to scattering of light are the following :

(i) Sun appears red near the horizons (during sunrise and sunset) and white when seen overhead.

(ii) Bluish colour of the sky.

(iii) Visible path of light as it enters a dark room.

(iv) Danger signals or stop signals are usually red.

(v) Blueness of distant mountains.

(vi) Sunlight filtering through clouds.

(a) the material
(b) the length
(d) the inner radius of the tube.

Explanation: 

The rise of a liquid in a capillary tube depends on  (a) the material because the angle of contact depends on it. (b) the length because if the length is smaller than required the rise will be up to the tube length. (d) the inner radius of the tube because the rise is inversely proportional to the inner radius.  

The option (c) is not true because the outer radius does not play any role.

The correct answer is (b) 10√2 cm

Explanation: 

When the tube is inclined, the vertical rise remains the same. So the water in the inclined tube rises to 10*sec45° =10√2 cm.

Answer is a and b

Answer is b and d

Set -I

(c) face book

Set – II

(c) Twitter

Set-III 

(a) Whats app

Set – IV

(c) Diaspora

We are using a utility for finding websites in internet called URL

(c) Host Name b

Set - I

(b) Exchange protocol

Set -II 

(a) Name of the site

Set – III

(c) place where file

Set - IV

(b) Name of the file

Answer is (c) ICANN

(c) IP address of the website

(b) The internet society

Cellular respiration: Respiration taking place within the cell.

Identifying a problem.

Suicide bags: Lysosomes cause the destruction of cells hence they are called suicide bags.

Direct personal interview, Indirect personal interview, Information from correspondents, mailed questionnaire, 

Primary data are those data which are collected by the investigators himself for the first time for his own purpose.

Banking, Insurance, Trade

Our target group will mainly be the middle income and higher income groups for our project related to cars.

1. Sale of car

2. Production of shoe polish

3. Production of bathing soap

The sources of secondary data are

1. Published sources (Govt Publication)

2. Semi government publications

3. International Publications

4. Studies made by the research scholars.

Secondary data are those data which have been collected by some other individual organisations and not by the investigator himself. These data are available in the form of published or unpublished reports.

Secondary sources of data are used when there is pancity o time, money and manpower and the required information is easily available.

Differences between primary data and Secondary data

The choice of identification of the target group is important for framing appropriate questions for a questionnaire.