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Radio waves are a part of the electromagnetic spectrum with high waves links and low frequencies.
a. true
b. false
Answers: 1
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What do lava flows made of aa indicate about the type of volcanic eruption that occurred? a. the eruption was viscous. b. the eruption was pyroclastic. c. the eruption was explosive. d. the eruption was quite. !
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There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.
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What factors contribute to the effect an environmental toxin has on the human body?
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The earth formed roughly 4.5 billion years ago, yet evidence of life dates back to about 3.5 billion years ago. which one is not a possible hypothesis of how life on earth arose?
Answers: 3
Radio waves are a part of the electromagnetic spectrum with high waves links and low frequencies.
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