Answer:
1. Sorting. The simplest way to separate mechanical mixtures is by sorting.
2. Floating. Sometimes, parts of a mechanical mixture will float on the surface.
3. Settling. Sand and cocoa powder both settle in water.
4. Using a Magnet. Some metals such as iron and steel are attracted to magnets.
5. Using Sieves and Filters.
6. Dissolving.
Explanation:
Mixtures can be separated using a variety of techniques.
Chromatography involves solvent separation on a solid medium.
Distillation takes advantage of differences in boiling points.
Evaporation removes a liquid from a solution to leave a solid material.
Filtration separates solids of different sizes.
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A) They hibernate.
Animals like bears often hibernate, which is go into a deep sleep lasting a long period of time, it is a good way to pass through seasonal changes. (hope this helps)
Light reactions<span> need </span>light<span> to produce organic energy molecules (ATP and NADPH). They are initiated by colored pigments, mainly green colored chlorophylls. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>
Answer:
It has a lot of functions, but its mainly to protect the spinal cord