Up to 20 Percent of Military Veterans Returning from Wars

question 418

True/False

Up to 20 percent of military veterans returning from wars develop post-traumatic stress disorder (PTSD), including soldiers involved in combat in Iraq and Afghanistan.

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Definitions:

Cyanobacteria

A phylum of bacteria that obtain their energy through photosynthesis, often referred to as "blue-green algae."

Ozone Layer

A layer in the Earth's stratosphere containing a high concentration of ozone, which absorbs most of the sun's ultraviolet radiation.

Hydrothermal Vents

Openings in the seafloor that emit hot, mineral-rich water, supporting unique ecosystems.

Spontaneous Combustion

The phenomenon where a material ignites without an external ignition source due to heat generated internally, often through chemical reactions, microbial action, or self-heating.