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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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Hello!

Could be either:

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 <span>An 'observation' in the scientific sense, is when you make a measurement or evaluation of some sort. You would usually make a note of how something has changed sine the previous ovbservation. Maybe the temperature has changed: gone up one degree; or a crystal has grown: maybe it is now .1 centimeters longer. 

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Hope this All Helps (Hope it did)! Have A Wonderful Day! :)
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Human movement behaviour
azamat

Answer: i really dont know

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suppose you water a potted plant in place at by a window in a transparent airtight jar predict how the rate of photosynthesis mi
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