What is a disadvantage of using solar energy?
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D, last one.

Explanation:

In order to use solar energy, we need solar panels.  Which we need sun for it to heat up, and once there is the sun.  The heat can hit the water, and cause the water to burn/boil

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chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.