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Yanka [14]
3 years ago
14

The Super-Volcano erupts in Yellowstone National Park. Lava, ash, etc. devastates 2/3 of the USA leaving newly cooled rock

Biology
1 answer:
diamong [38]3 years ago
3 0
B) Primary is where there is nothing no rock or soil
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How is the reproduction of a scorpion different from a cockroach? plzzz answer fast.
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What determines if an ion is negative or positive?
Anna71 [15]

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A potential cause of male infertility is a blockage of the vas deferens. The blockage could be due to the build up of scar tissu
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The type of treatment indicated to treat infertility due to blockage of the vas deferens is surgery to remove the obstruction (option C).

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