B - 17
The atomic number always matches the number of protons, or 17 p as listed in the image.
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C.<span>trees going dormant in winter to survive unfavorable conditions</span>
The ocean acidification is generally caused by the vast amounts of carbon dioxide that humans release in the air gettting absorbed into the ground, causing the PH of the water to rise.
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Because it determines if it is isolated or not. This means if other substances can enter or not. This usually relies on the membrane with it´s pores. The pores help the membrane be selectively permeable in what it lets in and out.
Condensation, because when water vapor turns into water again it needs to release energy to do so. Its like turning ice into water again.
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