The outer planets are known as
a. planetoids
b. gas giants
c. protoplanets
d. terrestrial planets

Why would the composition of a meteorite resemble the earth's interior?

During which era in earth's history were the first insects? mesozoic precambrian cenozoic paleozoic

James hutton is ? a. extensively studied fossils. b. revealed that fossils would provide the history of past life. c. created the first scientific classification of plants and animals. d. provided geologic evidence necessary for calculating the time span of evolution.