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 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.

American agronomist Norman Borlaug is widely known as the "Father of the Green Revolution". He led initiatives that increased agricultural production worldwide. In 1970, he received the Nobel Peace Prize in recognition of his contributions to increasing food supply and world peace. His work is estimated to have saved over a billion people from starvation.

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American agronomist Norman Borlaug is widely known as the "Father of the Green Revolution". He led initiatives that increased agricultural production worldwide. In 1970, he received the Nobel Peace Prize in recognition of his contributions to increasing food supply and world peace. His work is estimated to have saved over a billion people from starvation.

MRP stands for Maximum Retail Price. It is the highest price that a manufacturer can set for a product that is sold in India, Indonesia, and Bangladesh. The MRP is usually printed on the product's packaging, and consumers can use it to make sure they aren't being overcharged.

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MRP stands for Maximum Retail Price. It is the highest price that a manufacturer can set for a product that is sold in India, Indonesia, and Bangladesh. The MRP is usually printed on the product's packaging, and consumers can use it to make sure they aren't being overcharged.

Venus is the hottest planet in our solar system, with surface temperatures reaching as high as 462°C (863°F).

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Venus is the hottest planet in our solar system, with surface temperatures reaching as high as 462°C (863°F).

The Present Perfect tense is used to describe an action that started in the past and continues up to the present moment, or an action that happened at an unspecified time in the past and has a connection to the present.

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The Present Perfect tense is used to describe an action that started in the past and continues up to the present moment, or an action that happened at an unspecified time in the past and has a connection to the present.

An integer is a whole number, either positive, negative, or zero, without a decimal or fractional part, such as 5, -3, or 0.

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An integer is a whole number, either positive, negative, or zero, without a decimal or fractional part, such as 5, -3, or 0.

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 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.

Kavaratti is the capital of the Union Territory of Lakshadweep in India. Kavaratti is a census town as well as the name of the atoll upon which the town stands. It is well known for its pristine white sand beaches and calm lagoons, which makes it a popular tourist destination.

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Kavaratti is the capital of the Union Territory of Lakshadweep in India. Kavaratti is a census town as well as the name of the atoll upon which the town stands. It is well known for its pristine white sand beaches and calm lagoons, which makes it a popular tourist destination.

The Indian Institute of Astrophysics, with its headquarters in Bengaluru, is an autonomous research institute wholly funded by the Department of Science and Technology, Government of India. IIA conducts research primarily in the areas of astronomy, astrophysics and related fields.

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The Indian Institute of Astrophysics, with its headquarters in Bengaluru, is an autonomous research institute wholly funded by the Department of Science and Technology, Government of India. IIA conducts research primarily in the areas of astronomy, astrophysics and related fields.