The most prevalent environmental threat to human populations caused by landfills is the contamination of surface and ground water. so, most modern landfills in the u. s. are designed to protect against hazardous chemicals escaping into the surrounding soil. what technology makes these protection systems possibleenergy technologyinformation technologyagricultural technologyplastics technology

Energy technology

Energy technology makes this protection system because they are one of the fields most involved in creating this hazard in the first place (ie nuclear energy), so it makes sense that they utilize their latest technology to treat these chemicals in a way that could prevent any risk of contamination.

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.