Q: What are electrons lost during the formation of ions called? Choices: - catalysts - oxides - isotopes - cations A:
cations

Q: What are the two basic types of combustion engines? Choices: - gas and steam - spark and steam - diesel and internal combustion - external and internal combustion engines A:
external and internal combustion engines

Q: What is the name of the black opening in the eye that lets light enter? Choices: - iris - cornea - inlet - pupil A:
pupil

Q: Plant-like protists are autotrophs, meaning they make their own what? Choices: - spores - flowers - molds - food A:
food