If clouds are made from ocean water through the power of sunlight, then what does ocean water become when acted on by sunlight? Answer choices: - warmth - solar energy - Heat - Pollution - sand - oxygen - white - clouds
clouds

If geologists use radioactive dating to determine the age of rock layers, then what do geologists use to determine the age of rock layers? Answer choices: - Chemical dating - Mechanical dating - Non radioactive dating - blastoids - single-celled organisms - Seismometer - Radioactive dating - an electron microscope
Radioactive dating

Q: If gases from burning coal and oil dissolving in water in the atmosphere causes polluted rain, then gases from burning coal and and oil dissolving in the atmosphere can cause what? Answer choices: - polluted rain - disease - humidity - thunderstorms - snow - contamination - Temperature - harmful substances
A: polluted rain

Question: If lakes can be formed by rain, then which of the following can form lakes? Answer choices: - rivers - Drought - Rain - algae - Wind - Erosion - trout - fens
Answer: Rain

*Question*
If water from the air is when it changes from gas into a liquid by reducing heat energy, then water from the air occurs when it changes from gas into a liquid by reducing what? Answer choices: - direct energy - Energy. - Time and energy - kinetic energy - heat energy - energy - warmth - Temperature
**Answer**
heat energy

If mechanical waves can be used for communication by animals, then what can be used for communication by animals? Answer choices: - books - Electrical energy - electromagnetic energy - nails - chemical messengers - mechanical waves - encoded information - ice
mechanical waves