Plants appear green because they do not absorb the green wavelengths of light. What happens to those green light waves when they hit a plant? The are diffracted. They are absorbed. They are reflected. They are refracted.

Explanation:

it is reflected all the other colors such as red is absorbed

it is reflected on the others colors such as red is absorbed

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if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask