Which of the following agencies does not fund health research?

The National Science Foundation (NSF) is primarily focused on funding fundamental science and engineering research across various fields but does not specifically target health research. While NSF may support biological sciences and some health-related research simply through its broader mandate, its main mission encompasses a wider range of scientific disciplines, including mathematics, physical sciences, and social sciences, rather than being a dedicated health research agency.

In contrast, the other agencies listed — the US Army, the US Navy, and the FDA — have specific programs and initiatives that fund health-related research. The FDA focuses on public health through the regulation of food and drugs and promotes health research in these areas. The US Army and US Navy, through their respective medical research units, invest in health research addressing military health issues, including combat medicine and health technology developments, which are crucial for serving their personnel and the public health system as a whole.

This distinction is key in understanding the roles of these agencies in supporting various research initiatives, particularly in health-related fields.