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

[Q]: The right atrium of the heart receives the blood is pumped from veins of the systemic circuit.
[A]: What part of the heart receives the blood is pumped from veins of the systemic circuit?


[Q]: Solid form do alkali metals take at room temperature.
[A]: What form do alkali metals take at room temperature?


[Q]: Human population is growing exponentially and humans have increased carrying capacity normally limiting factor through technology, urbanization, and harnessing the energy of fossil fuels.
[A]:
Human population is growing exponentially and humans have increased what normally limiting factor through technology, urbanization, and harnessing the energy of fossil fuels?