In which era did life first appear?
cenozoic
mesozoic
paleozoic
precambrian

When studying the calumet region of illinois and indiana alfred meyers noted four stages of development as new groups occupied this land in stage 2 farmers used the land primarily to grow food for their familes and their small communities

When volcanoes erupt, magma (hot, molten rock) rises toward the surface of the earth. as magma cools, solid rock forms. this rock contains substances from the interior of the earth. which of the following natural resources is likely to be plentiful near subduction zones where volcanic activity has occurred in the past?

What is the climate of the himalayas? a. cold and wet c. cold and dry b. hot and humid d. hot and dry