<span>The correct answer should be C. Public land can be protected and unprotected. This means that it even though things belong to the public they can either be protected by for example military and have forbidden access to people, or they can be unprotected and people can freely visit and do what they want as long as it's not destruction of property in any way.</span>
An active transport is the process by which a substance is transported or transferred from one area to another using a chemical energy in the course.
<span>As oppose to passive transport, active transport’s key to its description uses energy to be able to transfer the said substance. This is important in a lot of aspects such as providing the needed elements or compounds in cellular activity.<span>
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At the end of the winter they are most numerous in fresh water. they will cover surface of aquatic plants or poles and wooden borders of ponds. If you like to study them you can scrape the brown growth with a flat piece of plastic. you can also use a sponge. for the free living (plankton) species fine mesh plankton net is very useful.