Important National and International Days

World Environment Day has been celebrated annually on June 5th since 1974. It was established by the United Nations to raise global awareness about environmental protection and encourage positive environmental action worldwide.

Nayantara Sahgal, the noted Indian writer, was born on November 18. Therefore, option A is the correct date.

World AIDS Day is observed globally on December 1st each year to raise awareness about HIV/AIDS and honor those affected by the pandemic.

International Women's Day is celebrated annually on March 8th to recognize women's achievements and advocate for gender equality worldwide.

World Environment Day is observed on June 5th every year as the United Nations' principal vehicle for encouraging awareness and action for environmental protection.

Valentine's Day is celebrated on February 14th annually as a day of romantic love and affection between companions.

Father's Day in India follows the international convention and is celebrated on the third Sunday of June each year. This date was adopted from the Western tradition of honoring fathers and is not tied to India's independence movement or cultural calendar.

The International Day of Peace, also known as World Peace Day, is observed annually on September 21. It was established by the United Nations in 1981 to strengthen the ideals of peace within and among nations.

World Health Day is observed annually on April 7 to mark the founding of the World Health Organization (WHO) in 1948. Each year focuses on a specific health theme important to global health.

World Food Day is celebrated annually on October 16 to commemorate the founding of the Food and Agriculture Organization (FAO) of the United Nations in 1945. It raises awareness about hunger and food security issues globally.

The World Day Against Child Labour is observed annually on June 12. It was launched by the International Labour Organization (ILO) to raise awareness and prevent child labor worldwide, focusing on the millions of children engaged in work that deprives them of childhood.

The International Day of Non-Violence is observed on October 2, which is the birth anniversary of Mahatma Gandhi. It was established by the United Nations in 2007 to honor Gandhis philosophy of non-violence and his role in global freedom movements.

World Cancer Day is observed annually on February 4th, as designated by the Union for International Cancer Control (UICC) to raise awareness about cancer prevention, detection, and treatment. The day aims to reduce misconceptions about cancer and support those affected by the disease. Note that option C has a typo ("Fed" instead of "Feb") and option D is the wrong month.

World Party Day is celebrated on April 3rd. This observance encourages social gatherings and celebrations globally. Other dates listed - April 22 (Earth Day), June 14, and May 5 - are associated with different occasions or not recognized as World Party Day.

Earth Day is celebrated annually on April 22nd worldwide to demonstrate support for environmental protection. The date was chosen to maximize participation on college campuses in the Northern Hemisphere during spring. May 22, June 21 (summer solstice), and July 23 are not the correct dates.