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ANTONII [103]
3 years ago
15

What is the purpose of a presumptive blood test?

Biology
1 answer:
Oksanka [162]3 years ago
3 0
The purpose of a presumptive test is to see which substance the sample is.
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Two factors that determine the rate of stream erosion
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Factors that determine the rate of stream erosion-

➡️ Rainfall (more rain more erosion). ✔️

➡️water velocity ✔️

➡️shape, size and depth of channel ✔️

➡️stream capacity to transport eroded material, and the nature of the material being transported✔️

➡️Gradient (Steepness or slope) ✔️

➡️Discharge (Amount of water carried at a given time) ✔️

➡️Load (The materials carried by a stream)
Rainfall (more rain more erosion). ✔️

➡️Slope (the steeper the slope the faster the water will flow) ✔️

➡️Geology (if the bedrock is a soft silt it will erode faster than granite).✔️



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