Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: The right atrium of the heart receives the blood is pumped from veins of the systemic circuit.

Answer: What part of the heart receives the blood is pumped from veins of the systemic circuit?

Question: Negative growth rate results when birth rates fall even lower than death rates.

Answer: What results when birth rates fall even lower than death rates?

Question: Surface tension comes from the fact that particles at the surface of a liquid do not experience interactions from all directions imbalance of forces leads to what on the surface.

Answer:
Surface tension comes from the fact that particles at the surface of a liquid do not experience interactions from all directions which leads to what on the surface?