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List of Important Days

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Syskool
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LIST OF IMPORTANT DAYS

January 9:  NRI Day
January 10: World Laughter Day
January 12: National Youth Day
January 15: Army Day
January 26: India’s Republic Day, International Customs Day
January 30: Martyrs’ Day; World Leprosy Eradication Day

2nd Sunday of February: World Marriage Day

February 24: Central Excise Day

February 28: National Science Day


Second Monday March:  Commonwealth Day

March 8: International Women’s Day; Intl. literacy Day

March 15: World Disabled Day; World Consumer Rights Day

March 18: Ordnance Factories Day (India)

March 21: World Forestry Day; International Day for the Elimination of Racial Discrimination

March 22: World Day for Water

March 23: World Meteorological Day

March 24: World TB Day


April 5: National Maritime Day
April 7 World Health Day
April 17 World Haemophilia Day
April 18 World Heritage Day
April 21 Secretaries’ Day
April 22 Earth Day
April 23 World Book and Copyright Day

May 1 Workers’ Day (International Labour Day)
May 3 Press Freedom Day; World Asthma Day
May 2nd Sunday Mother’s Day
May 4 Coal Miners’ Day
May 8 World Red Cross Day
May 9 World Thalassaemia Day
May 11 National Technology Day
May 12 World Hypertension Day; International Nurses Day
May 15 International Day of the Family
May 17 World Telecommunication Day
May 24 Commonwealth Day
May 31 Anti-tobacco Day

June 4 International Day of Innocent Children Victims of Aggression
June 5 World Environment Day
June 3rd Sunday Father’s Day
June 14 World Blood Donor Day
June 26 International Day against Drug Abuse and Illicit Trafficking

July 1 Doctor’s Day
July 6 World Zoonoses Day
July 11 World Population Day

August 3 Internatioal Friendship Day
August 6 Hiroshima Day
August 8 World Senior Citizen’s Day
August 9 Quit India Day, Nagasaki Day
August 15 Indian Independence Day
August 18 International Day of the World’s Indigenous Peoples
August 19 Photography Day
August 29 National Sports Day
August 19 Photography Day
August 29 National Sports Day

September 2 Coconut Day
September 5 Teachers’ Day; Sanskrit Day
September 8 World Literacy Day (UNESCO)
September 15 Engineers’ Day
September 16 World Ozone Day
September 21 Alzheimer’s Day; Day for Peace & Non-violence (UN)
September 26 Day of the Deaf
September 27 World Tourism Day

October 1 International Day for the Elderly
October 2 Gandhi Jayanthi
October 3 World Habitat Day
October 4 World Animal Welfare Day
October 8 Indian Air Force Day
October 9 World Post Office Day
October 10 National Post Day
October 2nd Thursday World Sight Day
October 13 UN International Day for Natural Disaster Reduction
October 14 World Standards Day
October 15 World White Cane Day (guiding the blind)
October 16 World Food Day
October 24 UN Day; World Development Information Day
October 30 World Thrift Day

November 9 Legal Services Day
November 14 Children’s Day; Diabetes Day
November 17 National Epilepsy Day
November 20 Africa Industrialization Day
November 29 International Day of Solidarity with Palestinian People

December 1 World AIDS Day
December 3 World Day of the Handicapped
December 4 Indian Navy Day
December 7 Indian Armed Forces Flag Day
December 10 Human Rights Day
December 18 Minorities Rights Day (India)
December 23 Kisan Divas (Farmer’s Day) (India)

Pin code System In India

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Syskool
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Pin code System In India

First Digit—Region— States Covered

1 —  Northern – Delhi, Haryana, Punjab, Himachal Pradesh and Jammu & Kashmir
2 —  Northern – Uttar Pradesh and Uttaranchal
3 —  Western – Rajasthan and Gujarat
4 —  Western – Maharashtra, Madhya Pradesh and Chattisgarh
5 —  Southern – Andhra Pradesh and Karnataka
6 —  Southern – Kerala and Tamil Nadu
7 —  Eastern – West Bengal, Orissa and North Eastern
8 — Eastern – Bihar and Jharkand
9 — APS – Army Postal Service

Our Solar System

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Syskool
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Information on Solar System

1. The brightest planet as seen from Earth——Venus
2. The planet also known as Earth’s twin——Venus
3. The planet, which rotates in a direction opposite to that of others——Venus
4. The planet, which has prominent rings around it——Saturn
5. Planets which have no satellites—– -Mercury & Venus
6. The planet with the longestday——Venus (244 hrs)
7. The planet with the shortestday——Jupiter (9 hrs 55 mts)
8. The planet also known as Evening/Morning star——Venus
9. The Jovian planets——Jupiter,Saturn, Uranus, Neptune
10. The star nearest to the earth——Proxima Centauri
11. The hottest planet in the solar system——Venus
12. The largest satellite in the solar system——Ganymede – Satellite ofthe Jupiter
13. The planet also known as the Red Planet——Mars
14. The highest known mountain inthe solar system——Olympus Monson Mars
15. The asteroid belt liesbetween——Mars and Jupiter
16. The largest asteroid also known as a dwarf planet—– Ceres
17. Pluto earlier considered a planet is now considered a dwarf planet anda part of——Kuiper belt
18. Halley’s comet last appeared in 1986 and is expected to appear next in——2061
19. The galaxy nearest to the milky way——Andromeda
20. The planet whose density is lessthan that of water—-Saturn

Solar System

 

ISO Standards

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Syskool
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ISO Standards

Popular ISO Standards:

ISO 9000: Quality Management
ISO 14000: Environmental Management
ISO 3166: Country Codes
ISO 22000: Food Safety Management
ISO 26000: Social Responsibility
ISO 50001: Energy Management
ISO 31000: Risk Management
ISO 4217: Currency Codes
ISO 639: Language Codes

BLOOD CIRCULATION

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Syskool
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BLOOD CIRCULATION

Composition of blood:

Blood is made up of fluid called plasma (60%) and a greater number of blood cells called corpuscles (40%). Plasma is 90% water with proteins and inorganic salts. Organic substances such as glucose, amino acids, fats, urea, hormones and enzymes, occur in plasma. Corpuscles are of two kinds, red and white. Red corpuscles are produced in the spleen. They form the majority of blood corpuscles. They contain the protein pigment haemoglobin which gives the red colour. It also has iron. White corpuscles are much less in number. These are of various kinds, some of which destroy disease germs which may enter the blood. Haemoglobin is a protein pigment in red blood cells. It combines readily with oxygen in lungs to form a loose compound called oxyhaemoglobin which is transported to tissues where it breaks up into haemoglobin and oxygen. The oxygen is used up by tissues for oxidation and the resultant carbon dioxide is carried away by the blood.

Blood group is the grouping of people whose blood may be mixed without clumping of blood corpuscles. A, B, AB and O are the four main blood groups. When blood of any two different groups is mixed, agglutination or clotting of blood corpuscles occurs and so only blood of the same group is used in blood transfusion.
Heart : It is a strong muscular organ situated in the chest between the right and left lungs and enclosed in a bag called the pericardium. It lies behind the breast bone and the ribs slightly to the left. It has two auricles on the upper half and two ventricles on the lower half, separated from each other by partitions. These parts have valves between them.

Blood circulation:

Auricles and ventricles of the heart contract and expand alternately. The right auricle receives impure blood from a large vein and the left auricle receives pure blood from the lungs. Both kinds of blood are forced into two ventricles by the contraction of two auricles. Now the two ventricles contract, valves close the opening between auricles and ventricles (systole) and hence no blood can go back into the auricles. Thus, the pure blood from the left ventricle goes into a large aorta and the impure blood from the right ventricle goes into the pulmonary artery. The aorta takes blood to various parts of the body. The pulmonary artery takes impure blood to the lungs. When ventricles relax (diastole) the auricles are again filled with blood and the same process is repeated. The contractions of ventricles are called heart beats.

Veins :

 They have valves and contain blood flowing to the heart. The backward flow of blood (away from the heart) by the pulsation of heart is checked by these valves.

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