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While light travels at different speeds in different kinds of matter, the speed of light is constant in what condition?

asked Jan 8 in Science by DamianPelloe (530 points)

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While in the lungs, blood gives up carbon dioxide and picks up what element before returning to the heart?

asked Jan 8 in Science by TanjaTrouton (530 points)

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While components of a mixture can be separated by physical means, the components of a pure substance can only be broken down through what means?

asked Jan 8 in Science by JaredGardene (310 points)

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While climate change in earth history was due to natural processes, what is primarily to blame for recent global warming?

asked Jan 8 in Science by AlfredSnell8 (590 points)

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Which zone is located below 200 meters from the surface?

asked Jan 8 in Science by Francisca61G (610 points)

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Which word describes how an extracellular solution can change the volume of a cell by affecting osmosis?

asked Jan 8 in Science by Sybil50I0967 (310 points)

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Which waves have the longest wavelengths but the least energy in the atmosphere?

asked Jan 8 in Science by SamaraUdl38 (390 points)

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Which waterfall series is the largest on the planet?

asked Jan 8 in Science by KeeshaFalcon (470 points)

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Which water from the equator mixes with cold water from the poles?

asked Jan 8 in Science by Phoebe93219 (530 points)

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Which vitamin is made in the skin when it is exposed to sunlight?

asked Jan 8 in Science by KarlaSeifert (370 points)

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Which virus causes cold sores?

asked Jan 8 in Science by LiliaSoubeir (250 points)

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1 answer 48 views

Which vertebrates were the first with four limbs?

asked Jan 8 in Science by EliCampion21 (270 points)

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1 answer 55 views

Which vertebrae carry the greatest amount of body weight and are thus characterized by the large size and thickness of the vertebral body?

asked Jan 8 in Science by JonathonSala (270 points)

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1 answer 36 views

Which veins return oxygen-rich blood from the lungs to the heart?

asked Jan 8 in Science by WilliamsRpu6 (290 points)

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Which types of waves are used for cell phones and radar?

asked Jan 8 in Science by ZellaElphins (470 points)

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1 answer 30 views

Which types of muscles cause bones to move when they retract?

asked Jan 8 in Science by AndySchnell9 (330 points)

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1 answer 43 views

Which types of compounds are more likely to burn easily?

asked Jan 8 in Science by WendyMortens (390 points)

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1 answer 21 views

Which type of weathering causes changes int he rocks materials, chemical or mechanical?

asked Jan 8 in Science by PatrickWoodd (570 points)

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Which type of tree loses its leaves each fall and remains leafless in the winter?

asked Jan 8 in Science by JoyceHueber (510 points)

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1 answer 27 views

Which type of tides are created when the sun and moon's tides match?

asked Jan 8 in Science by PenniSalaam4 (190 points)

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