question: liquids form a flat or slightly curved upper surface when acted upon by ___. answer input spelling…

question: liquids form a flat or slightly curved upper surface when acted upon by ___. answer input spelling counts but capitalization doesnt.
Answer
Brief Explanations:
Liquids form a flat or slightly curved (meniscus) upper - surface due to surface tension and the balance of forces at the liquid - air interface. Gravity also plays a role in determining the overall shape of the liquid surface. Surface tension causes the liquid to minimize its surface area, and gravity acts on the mass of the liquid.
Answer:
gravity and surface tension