Nitrogen gas consists of

1) two separate nitrogen atoms

2)a diatomic nitrogen atom

3)a molecule of two nitrogen atoms

4)a compound of nitrogen atoms

the answer is: metamorphic rocks often show the presence of fossils, also a

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answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.

answer;

c. a tree whose roots are surrounded by wet sand.

explanation;

water stress is an important factor limiting the growth and productivity of forests.water stress is the most often cited cause of poor survival and growth of woody landscape plants.

-insufficient soil moisture is the most common form of water stress, but excess moisture that leads to poor soil aeration (hypoxia) can also result in reduced plant vitality. a tree whose roots are surrounded by wet sand would be least likely to experience water stress.