Important Days in January
Jan 1	Army Medical Corps Establishment Day
Jan 8	African National Congress Foundation Day
Jan 10	World Laughter Day
Jan 9	Pravasi Bharatiya Divas
Jan 11	Death anniversary of Lal Bahadur Shastri
Jan 12	National youth Day (Birth Day of Swami Vivekanand)
Jan 15	Army Day
Jan 23	Netaji Subhash Chandra Bose's birth anniversary
Jan 25	International Customs Duty Day, India Tourism Day, Indian Voter Day
Jan 26	Republic Day
Jan 28	Birth anniversary of Lala Lajpat Rai
Jan 30	(Martyr's day) Mahatma Gandhi's Martyrdom Day;World Leprosy Eradication Day
Jan 31	World Leprosy Eradication Day
Inportant Days in February
Feb 2	World Wetlands Day
Feb 4	National Day of Srilanka
Feb 5	Kashmir Day (Organised by Pakistan)
Feb 13	Sarojini Naidu's Birth Anniversary
Feb 14	St. Valentine's Day
Feb 24	Central Exise Day
Feb 28	National Science Day
Important Days in March
Mar 3	National Defence Day
Mar 4	National Security Day
Mar 8	International Women's Day
Mar 9	CISF Raising Day
Mar 12	Mauritius Day;Central Industrial Security Force Day
Mar 15	World Consumer Day
Mar 16	National Vaccination Day
Mar 21	World Forestry Day
Mar 22	World Day of Water
Mar 23	World Meterological Day
Mar 24	World TB Day
Mar 26	Bangaladesh Liberation Day
Important Days in April
April 1	Orissa Day
April 5	National Meritime Day
April 7	World Health Day
April 11	National Safe Motherhood Day
April 13	Jallianwallah Bagh Massacre Day (1919)
April 14	B.R. Ambedkar Remembrance Day
April 17	World Haemophilia Day
April 18	World Heritage Day
April 21	National Civil Service Day
April 22	World Earth Day
April 23	World Books Day
April 24	Panchayat Raj Day
April 26	World Intellectual Property Day
Important Days in May
May 1	International Labour Day, Maharashtra Day
May 3	International Press Freedom day; International Energy Day
May 4	Coal Miners Day
May 7	Worlds AIDS Orphans day
May 8	International Red Cross Day (It is celebrated to commemorate the birth anniversary of the founder of the Red Cross Organization Jean Henry Dunant)
May 11	National Technology Day
May 15	International Family Day
May 17	World Telecom Day
May 18	International Museums Day
May 22	International Bio Diversity Day
May 24	Commonwealth Day
May 25	Worlds Thyroid Day
May 29	International Day of UN Peace Keepers
May 30	Hindi Journalism Day
May 31	World No Tobacco Day
Important Days in June
June 1	World Milk Day (FAO)
June 5	World Environment Day
June 8	World Oceans Day
June 12	World Day Against Child Labour / Child Labour Prohibition Day
June 14	World Blood Donor Day
June 15	World Elder Abuse Awareness Day
June 17	World Day to Combat Desertification
June 20	World Refugee Day
June 21	International Day of Yoga
June 23	United Nations Public Service Day
June 26	International Day Against Drug Abuse and Illicit Trafficking
June 29	National Statistics Day
Important Days in July
July 1	Doctor's Day
July 2	World UFO Day
July 4	American Independence Day
July 7	International Day of Cooperatives
July 11	World Population Day
July 17	World Day for International Justice
July 18	Mandela Day
July 26	Kargil Victory Day
July 27	Central Reserve Police Force Foundation Day
July 28	World Hepatitis Day
Important Days in August
Aug 6	Hiroshima Day
Aug 7	National Handloom Day
Aug 9	Quit India Movement Day
Aug 12	International youth Day
Aug 14	Pakistan's Independence Day
Aug 15	India's Independence Day
Aug 19	World Photography Day
Aug 20	Sadbhavana Diwas
Aug 29	National Sports Day of India (Dhyanchand's Birth Day)
Aug 30	Small Industry Day
Important Days in September
Sept 5	Teacher's Day (Dr. Radhakrishnan's Birth Day)
Sept 7	Forgiveness Day
Sept 8	International Literacy Day
Sept 14	Hindi day,World First Aid Day
Sept 16	World Ozone Day
Sept 21	International Day of Peace, World Alzheimer's day
Sept 25	Social Justice Day
Sept 27	World Tourism Day
Important Days in October
Oct 1	International Day for the Elderly(UN)
Oct 2	Gandhi Jayanti, International Day of Non-Violence
Oct 3	World Nature Day, World Habitat Day
Oct 4	World Animal Day
Oct 5	World Teacher's Day
Oct 6	World Wildlife Day, World Food Security Day
Oct 8	Indian Air-force day
Oct 9	World Postal Day
Oct 10	World Mental Health day;National Post Day
Oct 11	International Girl Child Day
Oct 12	World Sight day
Oct 13	World Calamity Control Day(UN)
Oct 14	World Standard Day
Oct 15	World White cane day(guiding the blind)
Oct 16	World Food Day
Oct 17	International poverty
Oct 20	National Solidarity Day (China attacked India on that day)
Oct 24	United Nations Day
Oct 30	World Thrift Day
Oct 31	Rastriya Ekta Diwas (Sardar Patel), National Integration Day (In memory of Indira Gandhi)
Important Days in November
Nov 5	World Tsunami Awareness Day
Nov 7	Infant Protection day;World Cancer Awareness Day
Nov 9	Legal Service Day
Nov 10	World Science Day for Peace Development
Nov 11	National Education Day
Nov 12	National Broadcasting Day
Nov 14	Children's day; World Diabetics day
Nov 17	Guru Nanak Dev's Birth Anniversary
Nov 18	Territorial Army Day
Nov 19	National Integration Day
Nov 21	World Fisheries Day; World Television Day
Nov 26	National Law Day
Important Days in December
Dec 1	World AIDS Day
Dec 3	World Disability Day
Dec 4	Navy Day
Dec 7	Armed Force Flag Day
Dec 10	Human Rights day
Dec 11	UNICEF Day
Dec 14	National Energy Conservation Day
Dec 19	Goa's Liberation day
Dec 23	Kisan Divas (Farmer's Day)

http://uk3.hotpotatoes.net/ex/159591/EAEFYFHH.php

inter national computer security day

aids

success

rubber factory effluents from aneesha02

Natural science is a branch of science concerned with the description, prediction, and understanding of natural phenomena, based on observational and empirical evidence. Mechanisms such as peer review and repeatability of findings are used to try to ensure the validity of scientific advances.

Natural science can be divided into two main branches: life science (or biological science) and physical science. Physical science is subdivided into branches, including physics, astronomy, chemistry, and Earth science. These branches of natural science may be further divided into more specialized branches (also known as fields).

In Western society's analytic tradition, the empirical sciences and especially natural sciences use tools from formal sciences, such as mathematics and logic, converting information about nature into measurements which can be explained as clear statements of the "laws of nature". The social sciences also use such methods, but rely more on qualitative research, so that they are sometimes called "soft science", whereas natural sciences, insofar as they emphasize quantifiable data produced, tested, and confirmed through the scientific method, are sometimes called "hard science".^[1]

Modern natural science succeeded more classical approaches to natural philosophy, usually traced to ancient Greece. Galileo, Descartes, Francis Bacon, and Newton debated the benefits of using approaches which were more mathematicaland more experimental in a methodical way. Still, philosophical perspectives, conjectures, and presuppositions, often overlooked, remain requisite^] in natural science.^[2] Systematic data collection, including discovery science, succeeded natural history, which emerged in the 16th century by describing and classifying plants, animals, minerals, and so on.^[3] Today, "natural history" suggests observational descriptions aimed at popular audiences.^[4]

inspiring video

DNA Structure PowerPoint from BiologyIB

DNA

In organisms called eukaryotes, DNA is found inside a special area of the cell called the nucleus. Because the cell is very small, and because organisms have many DNA molecules per cell, each DNA molecule must be tightly packaged. This packaged form of the DNA is called a chromosome.

During DNA replication, DNA unwinds so it can be copied. At other times in the cell cycle, DNA also unwinds so that its instructions can be used to make proteins and for other biological processes. But during cell division, DNA is in its compact chromosome form to enable transfer to new cells.

Researchers refer to DNA found in the cell's nucleus as nuclear DNA. An organism's complete set of nuclear DNA is called its genome.

Besides the DNA located in the nucleus, humans and other complex organisms also have a small amount of DNA in cell structures known as mitochondria. Mitochondria generate the energy the cell needs to function properly.

In sexual reproduction, organisms inherit half of their nuclear DNA from the male parent and half from the female parent. However, organisms inherit all of their mitochondrial DNA from the female parent. This occurs because only egg cells, and not sperm cells, keep their mitochondria during fertilization.