Which of the following statements about physical models is not true. a) physical models are often three_dimensional representations.

b) physical models are used to represent an objet or event.

c) physical models are usually in the from of graph.

d) physical models can be used to depict microscopic objects.

Answer:

The factors that affected the migration of early people groups were as follows:

1. Competition from other peoples or groups.

2. The search for much more stronger and fortifiable settlements.

3. Climate changes in different environments.

4. The invention of manual or mechanical wheels like the horse carriage.

Explanation:

1. Competition from other peoples or groups: Many of the early peoples faced competition from other groups of peoples over nomadic activities, and battle over better food sources, thus impacting on them negatively, and affecting migration.

2. The search for much more stronger and fortifiable settlements made the early peoples stretch out of their comfort zones and look for better and more advantageous lands.

3. The climate changes that occurred in different environments caused the early peoples to leave their habitations and seek for more hospitable environments and lands.

4. The invention of manual or mechanical wheels like the horse carriage motivated the early peoples to travel to unknown lands which later became their habitation.

Answer: a) isolation

Cyclopes are a race of giants that appear in Greek and Roman mythology. They are one of the perils that Odysseus faces in The Odyssey. Cyclopes only have one eye, which is located in the center of their foreheads. One of the defining characteristics of Cyclopes is the fact that they live in isolation. This distinguishes them from Greek men.