Based on the following chemical equation how many molecules of Hydrogen (H) are present in the reactants side? 2H2 + O2 > 2H2O
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i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.

bcde is the incorrect answer it is a