How does a large complex system like the earth system operate

Soil color only reflects the amount of organic matter present in soil.

What conclusion can be drawn about the location of the city of syracuse? it was built on the coastline due to easy access to the red sea. it was built on the coastline due to easy access to the mediterranean sea. it was built inland to protect it from invaders sailing in from the mediterranean sea. it was built inland to protect it from invaders sailing in from the red sea.

Which describes the solid flying debris from a volcano