Scientists have concluded that large mammals, such as the woolly mammoth, roamed the earth before the ice age. how do we know that the woolly mammoth was alive in the ice age?

a) fossils

b) mass extinction

c) evolution

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.