Which is the application of scientific knowledge to solve human needs and to extend human capabilities

The answer is technology

Explanation:

Technology consists of the practical application of scientific knowledge with the goal of solving practical problems, and extending human capabilities.

Examples of technology are the internet, railways, airplanes, ships, and bridges.

Technological advancement began in the stone age with the first stone tools. These tools are technological devices because they helped human ancestors extend their chances of survival.

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.