which one is gramatically corret and why? excessive exposure to the sun rays has been shown that it has or excessive exposure to the sun rays has been shown to have the second one sound

zz1212

which one is gramatically corret and why? excessive exposure to the sun rays has been shown that it has or excessive exposure to the sun rays has been shown to have the second one sounds more natural but i cannot understand why the first one is not correct

Corrections · 1

Maybe you could try this...

it has been shown that the excessive exposure to the sun has (negative effects)

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