Models are important in science. Some models are verbal models, which are full elaborate descriptions that can help someone visualize the concept. You have seen various visuals of Earth's layers. Create a verbal model of Earth's interior. In your model, describe the following: (6 points) The main layers of Earth's interior and the indirect evidence that helped us determine the layers.
The flow of matter in the mantle and in the core and the effects of that flow.
The source of thermal energy and how energy flows throughout the layers. (Hint: think of the cause of the convection currents)
Your

What statistics are to determine the development of a nation?

Match your vocabulary word to its definition. 1. emigration 2. immigration 3. migration 4. overpopulation 5. sustainable development 6. under population 7. unsustainable development 8. urbanization the movement from one place to another the number of people exceeds the available natural resources in an area leaving one's homeland to settle in a new place the increase in the population of a city the movement of people to a new country the ability to meet current needs without reducing the ability to meet future needs resources being used up at a faster rate than they can be replenished birth rate insufficient to replace the existing population

Explain how earths tilt and revolution around the sun affects weather and climate