Rick read in his earth science textbook about how sedimentary rocks form. he wants to do an experiment to see if he can model the process.
which of the following would be the best resource for rick to use when planning his experiment?
a. his earth science textbook
b. a field trip to an extinct volcano
c. a guest speaker who works at a cement plant

Centration is the correct answer

Aneutral atom must have the same number of neutrons and protons? no, they must have the same number of protons and electrons

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.