The first abundant fossil evidence does not appear until the beginning of the Cambrian period, about 540 million years ago. What percentage of geologic time is represented by abundant fossil evidence?

answercharacteristics of place include things like economic activity, architecture,and culture,all of which are human elements that alter or can be influenced by the environment;

because the sun creates the shadows and its only what people on earth see in the sky which are the phases of the moon.

it analyzes spatial location and organizes layers of information into visualizations using maps and 3d scenes. ​with this unique capability, gis reveals deeper insights into data, such as patterns, relationships, and situations— users make smarter decisions.

explanation: