If birds travel long distances, then what travels long distances? Answer choices: - humans - jets - rocks - birds - camels - cocoons - Light - eggs
birds

If animal plankton feeds on plant plankton, then what feed on plant plankton? Answer choices: - passenger pigeons - parasites - sunlight - animal plankton - ice - horses - absorb light energy - honeybees
animal plankton

Q: If abulb requires electrical energy to produce rays, then abulb uses electrical energy to produce:? Answer choices: - waves - unique - fields - Green - heat - rays - energy - warmth
A: rays

Question: If warm-blooded animals can stay active in cold by shivering, then which can help warm-blooded animals stay active in cold? Answer choices: - shivering - four limbs - Animal fur - sleep - sweating - hibernation - cold blood - fur seals
Answer: shivering

*Question*
If sheep can be used for keeping warm, then what can be used for keeping warm? Answer choices: - hats - carbon molecules - sheep - clouds - protein - hair - keratin - ice cubes
**Answer**
sheep

Q: If petroleum is formed from dead organisms over time, then what forms petroleum over time? Answer choices: - Organic compounds - dead dreams - a solute - a hydraulic system - dead organisms - ice - rocks - hydrogen and oxygen
A: dead organisms