What is the term for a situation in which people have unreliable access to sufficient nourishing food? what is the term for a situation in which people have unreliable access to sufficient nourishing food? food insecurity food poverty food anxiety food shortage?

Food insecurity

Explanation:

Food insecurity is a situation that occurs when people do not have adequate reliable access to enough healthy and nourishing food which they require for their growth and development and an active and healthy life. Food insecurity causes famine and hunger. Certain factors such as lack of food, instability, inappropriate utilization and insufficient access over a particular period of time may result in food insecurity.

because the light is a great source of energy for the plants to survive. (i hope this )

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."