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15 Cards in this Set
- Front
- Back
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GOOD LUCK
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IT'S EASY!!!
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what is the bottom layer of dirt and what does it look like?
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it's called layer R and it and it has rocks the size of buses and houses
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what is top layer of dirt?
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it's called 1o and 2o
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what is the second layer of dirt?
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A = a little life has nurturance and air = worms are here
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what is the third layer of dirt?
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Pebble sized rocks – less life
Layer B |
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what is the fourth layer of dirt?
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Boling ball sized rocks – no life – layer C
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Some things thats in soil?
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is typically composed of minerals, air, water, and organic matter.
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what is soil made up of?
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minerals - 45%
organic matters - 1-5% air - 25% water - 25% |
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what does pH stand for in soil?
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how much acidic or basic the soil is
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the temperature of the soil affects what can grow there.
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just a note
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in seed disperse what does K stand for
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K stands for Potassium
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in seed disperse what does N stand for
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N stands for nitrogen
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in seed disperse what does P stand for
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P stands for phosphorus
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what is Seed Disperse
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Seed Disperse is the spreading of the seeds
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why is there Seed Disperse
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To avoid competition for limited resources (ex: light, k, n, p, water, and nutrients)
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