Question

what is louis pasteur known for? building the wireless telegraph and radio producing the first practical light bulb developing a process to kill germs in food inventing the telephone

Explanation:

Louis Pasteur developed pasteurization, a process to kill germs in food and beverages by heating them to a specific temperature for a set time. He made significant contributions to microbiology. The other options are inventions by different people. Guglielmo Marconi is known for building the wireless telegraph and radio, Thomas Edison for producing the first practical light - bulb, and Alexander Graham Bell for inventing the telephone.

Answer:

developing a process to kill germs in food