Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[EX Q]: Lead sulfate is the white solid that forms on corroded battery terminals.
[EX A]: What is the white solid that forms on corroded battery terminals?

[EX Q]: If a gas in a closed area experiences increases in pressure and decreases in temperatures, the volume of the gas will be affected.
[EX A]: If a gas in a closed area experiences increases in pressure and decreases in temperatures, what other attribute of the gas will be affected?

[EX Q]: The conductive cells within the heart establish the heart rate and transmit it through the myocardium.
[EX A]:
The conductive cells within the heart establish the heart rate and transmit it through the what?