Match the environmental remediation method to its description.
soil vapor extraction
air sparging
bioventing
natural attenuation
Air is bubbled through groundwater to
remove volatile organic pollutants,
Natural processes break down the
pollutants.
Air is circulated through perforated
pipes in the contaminated soil.
Air is pumped into or out of soil to
supply oxygen to microbes,

All of them are man made

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.