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I am curious to know about structures similar to below examples:

1. It must be obtain from food .. (ACADEMIC)

2. It must be obtain from the food ...( My manipulation !)

which one is correct grammatically ? why some prepositions are followed without article ? Are those, 1 and 2, conveying different meanings ?

Note: We know the food addressing in both sentences.

I am curious to know about structures similar to below examples:

1. It must be obtained from food .. (ACADEMIC)

2. It must be obtained from the food ...( My manipulation !)

which one is correct grammatically ? why some prepositions are followed without article ? Are those, 1 and 2, conveying different meanings ?

Note: We know the food addressing in both sentences.

I am curious to know about structures similar to below examples:

1. It must be obtain from food .. (ACADEMIC)

2. It must be obtain from the food ...( My manipulation !)

which one is correct grammatically ? why some prepositions are followed without article ? Are 1,2 conveying different meanings ?

Note: We know the food addressing in both sentences.

I am curious to know about structures similar to below examples:

1. It must be obtain from food .. (ACADEMIC)

2. It must be obtain from the food ...( My manipulation !)

which one is correct grammatically ? why some prepositions are followed without article ? Are those, 1 and 2, conveying different meanings ?

Note: We know the food addressing in both sentences.