Newborn goslings have an innate tendency to follow the first moving object they see after being hatched. Which researcher observed this behavior that takes place during a critical period for the gosling?

When geographers describe how two places are related to each other spatially, they are describing a. where the places are located in relation to one another b. what kinds of natural environments are around each place c. how each place is changing over time d. what kinds of cultures are in each place

Which of the following can scientists estimate geologic time? a.observing rock sequences b.radiometric dating c.comparing fossils d.all of these

How has the geography of india made it difficult for its people to expand before modern technology?