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The kind of vegetation that alfisols support is a temperate forest. Alfisols develop under the temperate broadleaf deciduous forests. Broadleaf trees tend to be nutrient demanding, and their leaves are filled with major nutrient elements. The litter from this type of forest is not the acidic type, either.
Answer:
10Ω
Explanation:
The 10Ω resistors are in series, so their combined resistance is:
10Ω + 10Ω = 20Ω
The 8Ω resistors are in parallel, so their combined resistance is:
(1/8Ω + 1/8Ω)⁻¹ = 4Ω
This 4Ω resistance is in series with the 16Ω resistor, so the combined is resistance is:
4Ω + 16Ω = 20Ω
Finally, this 20Ω resistance and the first 20Ω resistance are in parallel, so the total equivalent resistance is:
(1/20Ω + 1/20Ω)⁻¹ = 10Ω