Answer:
1_ non of them because it is physical
2_ the answer is D
Plant leaves and dead organic matter are broken down by decomposers,to produce soil nutrients for plants. This is an important role decomposers play in the nutrient cycles.
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A topographic map<span>
is a type of map that shows heights that you can measure with use of contour lines and colors. Much like the example shown. </span>
There is a device called a thermometer for that...
I think that PROCESSING is an example of secondary econmic