Frank wants to determine how the type of container, that holds a liquid, affects the evaporation rate of the liquid. Which of the following describes the best type of scientific investigation for finding the answer to this question?

What factors led to europe's global dominance in economic and political factors? what impacts did that dominance have on other peoples and environments?

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

1. crust 1 the metallic layer at the earth's center 2. inner core 3 the firm layer between the crust and the asthenosphere 3. lower mantle 2 the layer surrounding the inner core 4. asthenosphere 4 the semi-solid layer between the top layer and the upper mantle 5. upper mantle 5 the layer between the asthenosphere and lower mantle 6. top layer 6 the earth's outermost layer 7. outer core 7 the hottest part of the mantle