Hydrogen is a likely candidate in the search for a replacement for petroleum. however, removing hydrogen from water requires the investment of a great deal of energy. why are plants considered to be one step ahead in the utilization of hydrogen as an alternative fuel source?

because of their water splitting enzymes

Explanation:

Based on the information provided within the question it seems that plants would be considered to be one step ahead in the utilization of hydrogen as an alternative fuel source because of their water splitting enzymes. These enzymes are used in the plant's photosynthesis process to break down water into it's base elements of hydrogen and oxygen. Thus easily being able to collect their own hydrogen which is one of the biggest problems for using hydrogen as a replacement for petroleum.

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all freedom fighters demanded for constitution. so british finally granted india it's freedom. then a constituent assembly was formed. it's chair man was rajendra prasad and its deputy chairman was dr. br ambedkar.

this assembly take the time of about one year than our constitution was finally formed.

explanation: