Carbon dioxide. the plants take the carbon dioxide and make oxygen
This is possible because when a star dies, it basically expands to its maximum (explodes). Therefore, the materials of the exploded star mix with the primeval hydrogen of the Universe. Later, other stars are formed out of this mixture. Thats also how the sun was formed. :)
Answer:
some sort of water system, (a river/groundwater/purification plant ect.)
Explanation:
Answer:
A. Revise the hypothesis based on the results and use it to design another experiment.
Answer:
Las sociedades industrializadas generan una gran cantidad de productos que no son imprescindibles para el ser humano, por lo que se usan un tiempo y son desechados.
