*Question*
With less ozone in the stratosphere, more UV rays reach the ground. Carlos knows that there is more ozone in the stratosphere today, and goes out on a sunny day. He puts on sunscreen knowing that the UV rays can reach the ground less or more?
**Answer**
less

*Question*
Sea level rises if an increase in seafloor spreading rate buoys up the ocean crust, causing the ocean basin to become smaller. Sam creates a replica of an ocean. He decreases the size of the ocean basin, which should decrease or increase the sea level of the model?
**Answer**
increase

*Question*
Better farming techniques and machines increased the food supply and the distribution of food. When people figured out how to grow food the levels of food in the world increased or decreased?
**Answer**
increased

*Question*
As the distance between the objects increases, the force of gravitational attraction decreases. When rocket comes back down out of space, the attraction level the rocket has to the Earth increases or decreases?
**Answer**
increases