When the northern hemisphere is having summer solstice what is happening in the southern hemisphere
a. fall equinox b. spring equinox c. winter solsist d. summer solstice

Scientists discovered fossils in several layers of the earth you see here. they found fossils of algae, snails, and clams in layer d. given that information, where do you think they found fossil evidence of simple land plants and amphibians? a. a b. e c. f d. g