Which of the following scientists is credited with the development of the first successful polio vaccine? [#1300]

Jonas Salk developed the inactivated poliovirus vaccine (IPV) in 1955, which was the first effective vaccine against polio. Salk's vaccine led to a significant reduction in polio cases and paved the way for global efforts to eradicate the disease.

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Jonas Salk developed the inactivated poliovirus vaccine (IPV) in 1955, which was the first effective vaccine against polio. Salk's vaccine led to a significant reduction in polio cases and paved the way for global efforts to eradicate the disease.

The Elephanta Caves, a UNESCO World Heritage Site, are primarily dedicated to the Hindu god Shiva. The main cave is famous for its carvings depicting Shiva in various forms and actions. The caves are located on Elephanta Island, also known as Gharapuri, in Mumbai Harbour.

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The Elephanta Caves, a UNESCO World Heritage Site, are primarily dedicated to the Hindu god Shiva. The main cave is famous for its carvings depicting Shiva in various forms and actions. The caves are located on Elephanta Island, also known as Gharapuri, in Mumbai Harbour.

The object is the word or phrase that receives the action of the verb, and can be a noun, pronoun, or phrase.

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The object is the word or phrase that receives the action of the verb, and can be a noun, pronoun, or phrase.

World Press Freedom Day was proclaimed by the UN General Assembly in December 1993, following the recommendation of UNESCO's General Conference. Since then, 3 May, the anniversary of the Declaration of Windhoek is celebrated worldwide as World Press Freedom Day.

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World Press Freedom Day was proclaimed by the UN General Assembly in December 1993, following the recommendation of UNESCO's General Conference. Since then, 3 May, the anniversary of the Declaration of Windhoek is celebrated worldwide as World Press Freedom Day.

In 2006, the International Astronomical Union (IAU) redefined the term "planet" and reclassified Pluto as a dwarf planet, which is a distinct category of celestial body. This decision was made after the discovery of several other objects in the Kuiper Belt that were similar in size and composition to Pluto.

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In 2006, the International Astronomical Union (IAU) redefined the term "planet" and reclassified Pluto as a dwarf planet, which is a distinct category of celestial body. This decision was made after the discovery of several other objects in the Kuiper Belt that were similar in size and composition to Pluto.

The Shore Temple is a complex of temples and shrines that overlooks the shore of the Bay of Bengal. It is located in Mahabalipuram, about 60 kilometres (37 mi) south of Chennai in Tamil Nadu, India.

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The Shore Temple is a complex of temples and shrines that overlooks the shore of the Bay of Bengal. It is located in Mahabalipuram, about 60 kilometres (37 mi) south of Chennai in Tamil Nadu, India.

Russia is the world's largest producer of diamonds, mining roughly 41.92 million carats in 2022. This is significantly more than other diamond-producing countries, like Botswana, which produced 24.5 million carats, and Canada, which produced 16.3 million carats in the same year. Russia has more than 12 operating open-pit diamond mines, particularly in the Sakha Republic.

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Russia is the world's largest producer of diamonds, mining roughly 41.92 million carats in 2022. This is significantly more than other diamond-producing countries, like Botswana, which produced 24.5 million carats, and Canada, which produced 16.3 million carats in the same year. Russia has more than 12 operating open-pit diamond mines, particularly in the Sakha Republic.

The Varman dynasty ruled the ancient kingdom of Kamarupa in the Brahmaputra Valley from the 4th to the 7th century CE. During their reign, they built several temples, monuments, and cities, and developed a distinct culture that blended Indian and Southeast Asian influences.

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The Varman dynasty ruled the ancient kingdom of Kamarupa in the Brahmaputra Valley from the 4th to the 7th century CE. During their reign, they built several temples, monuments, and cities, and developed a distinct culture that blended Indian and Southeast Asian influences.

The National Flag shall be rectangular in shape. The ratio of the length to the height (width) of the Flag shall be 3:2.

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The National Flag shall be rectangular in shape. The ratio of the length to the height (width) of the Flag shall be 3:2.

The Vikram Sarabhai Space Centre (VSSC) is a major space research center of the Indian Space Research Organisation (ISRO) and is located in Thiruvananthapuram, Kerala, India. The center is named after Dr. Vikram Ambalal Sarabhai (1919-1971), who is known as the "Father of the Indian Space Program". VSSC was established on November 21, 1963, and is responsible for the design and development of launch vehicle technology for India's satellite program. The center also conducts research and development in areas such as aeronautics, avionics, materials, propulsion, and space physics.

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The Vikram Sarabhai Space Centre (VSSC) is a major space research center of the Indian Space Research Organisation (ISRO) and is located in Thiruvananthapuram, Kerala, India. The center is named after Dr. Vikram Ambalal Sarabhai (1919-1971), who is known as the "Father of the Indian Space Program". VSSC was established on November 21, 1963, and is responsible for the design and development of launch vehicle technology for India's satellite program. The center also conducts research and development in areas such as aeronautics, avionics, materials, propulsion, and space physics.

The sum of the interior angles of a triangle is always 180 degrees, a fundamental principle in geometry.

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The sum of the interior angles of a triangle is always 180 degrees, a fundamental principle in geometry.