The DNA repair ability of a cell is vital to the integrity of its genome and thus to the normal functionality of that organism. Many genes that were initially shown to influence life span have turned out to be involved in DNA damage repair and protection.
Examples for negative production externalities include: 1  Air pollution from burning fossil fuels. 2  This activity causes damages to crops, (historic) buildings and public health. 3  Anthropogenic climate change as a consequence of greenhouse gas emissions from burning oil, gas, and coal.
show more 1. enter the atmosphere directly, whereas secondary pollutants form from substances within the atmosphere. 2. are the direct result of natural processes whereas secondary air pollutants are the result of human activity. 3. include ozone, whereas sulfur dioxide is an example of secondary air pollutants.