Q: What can be used to mechanically separate the two elements by attracting the iron filings out of the mixture and leaving the sulfur behind? Choices: - centrifuge - laser - graduated cylinder - magnet A:
magnet

(Question)
Q: Around 1200 species of what broad animal group are currently at risk of extinction due to human activity? Choices: - mammals - reptiles - amphibians - birds A:
(Answer)
birds

Ques: Q: What energy, produced by vibrations, cannot travel through empty space? Choices: - light - heat - plasma - sound A:
Ans: sound

(Q).
Q: The release of an egg from an ovary, is part of what cycle? Choices: - life - stomach - fetal - menstrual A:
(A).
menstrual

Ques:Q: Haumea, which is the third brightest kuiper belt object has an odd oval shape which is probably caused by what? Choices: - unusually rapid rotation - particularly rapid rotation - Slow rotation - extremely rapid rotation A:

Ans:extremely rapid rotation

Question: Q: Platforms, arches, and sea stacks are all landforms created by what? Choices: - sediment - volcanic activity - debris - erosion A:
Answer:
erosion