You are given a sentence and your task is to generate another sentence that supports the given input.

[EX Q]: An increase in the pressure of the gas might be caused by an increase in temperature (through heating the container of the gas) or by a decrease in volume (through moving a piston connected to the container).
[EX A]: When gas particles heat up, pressure increase.

[EX Q]: Gamma radiation is generated by radioactivity, the decay of radioactive (unstable) atoms both in Earth's crust and in the atmosphere, and in reactions caused by cosmic ray collisions with atmospheric constituents, as well as by the decay of elementary particles produced by these collisions.
[EX A]: Radioactive atoms, nuclear explosions, and stars produce gamma rays

[EX Q]: Gene expression, or the synthesis of specific proteins, is regulated mainly at the level of transcription, the process of making RNA copies of the DNA sequences that comprise the genes.
[EX A]:
Gene expression and protein synthesis are usually considered the same molecular process.