If playing is just one of many ways that pugs learn how to behave, then what is just one of many ways that pugs learn how to behave.? Answer choices: - humans - playing - sleeping - growing - Movement - sound - genetics - exercise
playing

If some insects communicate with chemicals called pheromones, then how do some insects communicate? Answer choices: - sound - sensory neurons - Decibels - electronic waves - progesterone - Vibrates - pheromones - radio waves
pheromones

Q: If fungus spread by wind has a negative impact on the respiratory system, then what spread by wind has a negative impact on the respiratory system? Answer choices: - fungus - rain - disease - laughter - clouds - influenza - viruses - bacteria
A: fungus

Question: If space travel is used for moving people, then what is used for moving people? Answer choices: - a hydraulic system - birds - rivers - clouds - lava - space travel - engines - electricity
Answer: space travel

*Question*
If light can burn the skin, then what can burn the skin? Answer choices: - cream - light - ointment - the sun - Lukewarm water - cigars - Acids - NaCl
**Answer**
light

Q: If heat can change something that has three states, then heat can change something that has how many states? Answer choices: - seasons - two - Energy. - three - energy - liquid - unique - cycles
A: three