Light is used in photosystem II and photosystem I to Question 16 options:

A)

make carbon dioxide.

B)

excite an electron.

C)

fix carbon dioxide.

D)

power the Calvin cycle.

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.      

listen, you cant how young you were.

"you didn't chose the stud life. the stud life chose you."

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.