In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.

passage: In mathematics, a polynomial is an expression consisting of variables (also called indeterminates) and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables. An example of a polynomial of a single indeterminate x is x − 4x + 7. An example in three variables is x + 2xyz − yz + 1.
 question: does a polynomial have to have a variable?
Yes

passage: The Comprehensive Economic and Trade Agreement (CETA) is a free-trade agreement between Canada, the European Union and its member states. It has been provisionally applied, so the treaty has eliminated 98% of the tariffs between Canada and the EU.
 question: does canada have a free trade agreement with eu?
Yes

passage: In thermodynamics, an adiabatic process is one that occurs without transfer of heat or matter between a thermodynamic system and its surroundings. In an adiabatic process, energy is transferred to its surroundings only as work. The adiabatic process provides a rigorous conceptual basis for the theory used to expound the first law of thermodynamics, and as such it is a key concept in thermodynamics.
 question: is there work done in an adiabatic process?

Yes

