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dangina [55]
3 years ago
11

With layer of Earth is responsible for creating Earths magnetic field.

Biology
2 answers:
Neporo4naja [7]3 years ago
8 0
Unlike a bar magnet<span>, however, </span>Earth's magnetic field<span> changes over time because it is generated by a geodynamo (in </span>Earth's<span> case, the motion of molten iron alloys in its outer core).</span>
rosijanka [135]3 years ago
4 0
I would think the core. Because the Earth's magnetic field is the result of electric currents in the liquid metal outer core. 
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Organic matter in soil is also called _____.
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The correct answer would be humus.

Humus is the organic material of the soil formed by the decomposition of the dead plants and animals. It is thick and dark in color (brown or black) and can also be produced by the process of composting.

It is very for the soil as it adds moisture to the soil, enhances the structure of the soil which increases the aeration and drainage.

It favors the growth of organisms (such as earthworm) helpful for the growth of plants and adds lots of nutrients to the soil, specially nitrogen.

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7 0
2 years ago
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Prompt
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Answer:

Energy in an ecosystem is mainly made by the producers of an ecosystem. The net primary productivity in an ecosystem depends on many factors. Some of them are:

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packing down soil. building drains with outlets. increasing the slopes of riverbanks.

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