Ques:Q: Pollutants in surface water can filter into the ground and enter a what? Choices: - hydro plant - turbine - combustion aquifer - groundwater aquifer A:

Ans:groundwater aquifer
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Ques:Q: Where are protons and neutrons located? Choices: - outside the nucleus - secondary nucleus - orbitals - central nucleus A:

Ans:central nucleus
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Ques:Q: Why will water balloons launched into the air eventually burst? Choices: - heat - momentum - friction - expansion A:

Ans:expansion
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Ques:Q: The earth's magnetic poles have done what repeatedly in the past? Choices: - rotated - stayed the same - demagnetized - switched places A:

Ans:
switched places
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