Answer:
c) active
Explanation:
When in an atom the outermost shell is not full (eg. 2,8,3 ; here in the last shell it is not filled completely and needs 5 more electrons to complete it ) then the atom becomes active and molecules doesn't react unless and until an atom is active .
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When water molecules are being made, two hydrogen atoms will make a hydrogen bond with one oxygen atom, making a water molecule.
The answer is A, exercising
<span>The kidneys can have a direct influence on the urinary system, by pushing hydrogen ions and bicarbonate into and out of urine.Without the kidneys performing its duties within the body, waste materials can poison other internal organs causing infection and other complications to occur within the body.</span>
When Sarah performed this experiment, she changed the levels of nitrogen in order to observe the changes in the morphological features of the plant.
All of the characteristics of the plant that she observed were dependent on multiple different things, but the level of nitrogen was an independent variable that she was changing at her will.
