HELLP. This is for algebra 2

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.