(Question)
Q: Life itself could not exist without what energy, which plays a vital role in photosynthesis? Choices: - time energy - spin energy - magnetic energy - light energy A:
(Answer)
light energy

(Question)
Q: Do waves move faster when particles are close to each other or far away? Choices: - unaffected - far away - open - close A:
(Answer)
close

(Question)
Q: Why will water balloons launched into the air eventually burst? Choices: - heat - momentum - friction - expansion A:
(Answer)
expansion