Answer:
Explanation:
Liquid water changes to water vapor when it evaporates or boils. The gas inside the bubbles of boiling water is water vapor. Water vapor can change back into liquid water when it cools down. Water vapor is always invisible.
The correct answers are:
- It slowed microbial growth in food.
- It allowed people to store a few days of food in their homes.
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Then everyone would fall off the surface
