Short Answer -- Connections, Relationships, Cause and Effect

Explain the relationship between each of the following pairs, each in a short answer, 100 words or less. How does one lead to, cause, influence, or relate to the other? Note: none of these are simple cases of the first item causing the second one -- in each case, there is an interconnection between the two. (Compile all your answers into a single document and send it to the instructor through the class mail system.)

1. Aryan religious ideas (for example, the Rig Veda creation story)  /   social inequality in ancient India

2. Nile River   /    ancient Egyptian economy

3. Akhenaten /   monotheism

4. Indus River  /   Mohenjo-daro