16. What is the process by which water evaporates from plants and enters the atmosphere?
A) Precipitation
B) Transpiration
C) Condensation
D) Sublimation
17. What is the name of the process by which water changes from a liquid to a gas?
A) Evaporation
B) Condensation
C) Sublimation
D) Precipitation
18. What is the name of the layer of the Earth’s atmosphere where meteors burn up?
A) Troposphere
B) Stratosphere
C) Mesosphere
D) Thermosphere
19. What is the process by which rocks, minerals, and other materials are broken down into smaller pieces?
A) Erosion
B) Weathering
C) Deposition
D) Compaction
20. What is the name of the layer of the Earth’s crust that is made up of solid rock?
A) Lithosphere
B) Asthenosphere
C) Mantle
D) Core
