Volcanic rock has often been found early in the rock record but less frequently in later rock layers. What does this suggest to scientists about early earth?.

What can you learn about precipitation levels in south america from this map? brazil is experiencing a drought. it rains more in higher altitudes. peru received the highest level of rain. venezuela got less than 25 cm of rain. 

Which question did the author of how to grow a school garden consider about the audience before writing the project plan

The position on the earth in which a place can be found