Answer:
Most of the time, cells are in interphase, where growth occurs and cellular components are made. DNA is manufactured during S phase. To prepare the cell for Sphase (DNA synthesis), G1 phase occurs (the preparation of DNA synthesis machinery, production of histones).
Metals and noble gases answer
It should be a hypothesis
I'm not 100 % sure but it may help you to have a look at this link -
http://www.answers.com/Q/What_is_the_formula_for_photosynthesis