Explanation:
brittle, electrical insulator
Silicates<span> are </span>minerals<span> that </span>contain silicon<span> atoms bonded to </span>oxygen<span> atoms. The basic building block for all </span>silicate minerals<span> is called a tetrahedron, where one</span>silicon<span> atom is bonded to 4 </span>oxygen<span> atoms. </span>Silicate minerals<span> also often </span>contain<span> other </span>elements<span>, such as calcium, iron, and magnesium.</span>
The control group outs the one that you don't change. The reason you don't change it is because you use it as a comparison with the other groups.
Human influence ecosystem by chopping down forests,and cars burning off greenhouse gases.Humans can effect the ecosystem in a negative way ,by pollution, waste dumping, over hunting of animals,over fishing,industrial gases,energy use and not using
C. The cell must be a plant cell.
Only plant cells have cell walls. Bacteria cells and animal cells do not. Both animal cells and plant cells have membrane-bound organelles, but since the student saw a cell wall, it must be a plant cell.
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