Which type of rock provides the best evidence that earth's environment has changed over time?

Which choice analyzes the parts of the word and determines the meaning of the word spectator

Alexander stephens’ opinion on secession and compromise led to what being written? a)the kansas-nebraska act b)the missouri compromise c)the u.s. constitution d)the georgia platform

Whereas piaget saw cognitive development as a result of individual discovery and a child's interaction with objects, vygotsky attributed cognitive development to