Question

which of the following processes involves water changing from a liquid to a gas?
infiltration
condensation
evaporation
precipitation
which of the following best describes the process of nuclear fusion that occurs in stars?
the combination of hydrogen atoms to form helium and release energy
the conversion of matter directly into energy without nuclear reactions
the decay of radioactive elements in a stars core
the splitting of heavy atomic nuclei into lighter elements
the rock cycle demonstrates that:
only igneous rocks can become sedimentary rocks
rocks can transform from one type to another
rocks remain unchanged over time
metamorphic rocks cannot be transformed

Explanation:

First Question:

• Infiltration: Water enters soil, no liquid - to - gas change.
• Condensation: Gas to liquid (opposite of what's asked).
• Evaporation: Liquid water becomes water vapor (gas), matches the process.
• Precipitation: Water falls from sky (liquid or solid), no liquid - to - gas change.

• Nuclear fusion in stars: Hydrogen nuclei fuse to form helium, releasing energy.
• Option 2: No, fusion is a nuclear reaction.
• Option 3: Decay is not fusion.
• Option 4: Splitting is fission, not fusion.

• Rock cycle: Shows rocks (igneous, sedimentary, metamorphic) can transform into each other.
• Option 1: False, any rock can become sedimentary.
• Option 3: False, rocks change over time.
• Option 4: False, metamorphic rocks can transform.

Answer:

C. Evaporation

Second Question: