D Cause and Effect
A virus causes a cold and carelessness causes errors
Answer:
I believe That it is a Suspension
Explanation:
A heterogeneous mixture that has larger dispersed particles that settle over time is a Suspension. Suspension in which two or more substances are mix together, but they do not get dissolve to form compounds.
They show the most important substances as it can show how they reac in a chemical and how they are able to react
Answer:
The six most important characteristics of a civilization are cities, government, religion, social structure, writing, and arts and architecture.
To establishing a civilization - Cities grew on rivers and bodies of water where people could farm or fish for food. Rivers provided transportation and trade. Rivers provided rich soil and water for fields.