(Question)
Q: Earth goes through regular changes in its position relative to? Choices: - the moon - saturn - mars - the sun A:
(Answer)
the sun

(Question)
Q: Which parasite causes downy mildew in grape plants? Choices: - taphrina confusa - epichloe typhina - chrysomyxa ledi - plasmopara viticola A:
(Answer)
plasmopara viticola

(Question)
Q: What are unsaturated hydrocarbons with at least one triple bond between carbon atoms? Choices: - amines - lipids - ketones - alkynes A:
(Answer)
alkynes