*Question*
Read the passage below and choose the right answer to the following question (choices are more or less ): On a hot day, an endotherm may give off more heat by increasing blood flow to the surface of the body. After Sarah finishes her walk, she notices that her blood is not really pumping that hard. Sarah can know that since it's a cool day, she's giving off what kind of heat compared to usual more or less?
**Answer**
less

*Question*
Read the passage below and choose the right answer to the following question (choices are greater or smaller ): To reduce friction, oil is added to the engine. Dana wants things to slide around easily without too much friction, so she uses oil in amounts that are greater or smaller?
**Answer**
greater

*Question*
Read the passage below and choose the right answer to the following question (choices are more or less ): For example, more people on the Earth means more people contributing to global warming and pollution. Angel traveled to New York, and experienced more or less pollution?
**Answer**
more

*Question*
Read the passage below and choose the right answer to the following question (choices are increases or decreases ): The stratosphere contains the ozone layer, the temperatures increase as altitude increases. Tina flew lower and lower into the stratosphere. The temperature of her ship increases or decreases?
**Answer**
decreases