Photosynthesis and respiration are alike in that
they both
(1) require the sun as a direct source of energy
(2) result in the production of glucose molecules
(3) require specific catalysts
(4) occur within mitochondria

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correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.