The first diagram is the alpha helix, which is a spiral shape.
The second diagram is the beta pleated sheet which is the folded paper shape
I believe the answer is Management, hope this helps :)
I think the correct answer from the choices listed above is option D. It would be carbon dioxide and water that contributes the most to the mass of a plant. These substances are what the plant needs to carry out photosynthesis with the presence of sunlight. Hope this answers the question.
I think D because the whole thing is gaseous and it has two atmospheric layers
Klay does not have to worry about anything blowing up or inhailing harmful gases.