Over the last 2 years, lead and copper levels within Flint, Michigan's water supply have significantly dropped. Why is it still important to public health to continue monitoring the lead and copper levels despite this drop?
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Ответ:
Ответ:
Fill in the blanks to describe the work of Ben Kennedy, a volcanologist who works in New Zealand.
To learn more about why his pumice sample was shrinking, Ben Kennedy studied FOAM
This material is similar to pumice because both are full of air BUBBLES
Kennedy found that the shrinking had to do with molten rock’s surface TESION which is the force that holds a droplet of water together.