When lava cools, it becomes
A: liquid.
B: water.
C: smoke.
D: hard.
A: liquid.
B: water.
C: smoke.
D: hard.
举一反三
- According to the state of water in the soil, the liquid phase can be divided into ____, bound water, and free water.
- 中国大学MOOC: When water cools, but does not freeze, the molecules move ______________ and take up ______________ space.
- Why is it hard to say when a piece of country becomes a suburb __________
- You can add liquid to the powder, or _________, the powder to the liquid.
- When water becomes solid, we ____it ice. A: call B: tell C: speak D: say