Atoms are the basic units of matter. Protons are found in the nucleus of an atom and it has a positive charge.
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Answer:
1) Cuya
2) Cuando
3) Que
Explanation:
1. cuya ( whose) ...company dedicates to...
2. cuando (when) ... the water contaminates, there are many toxic substances.
3. que ( that) ... looks for a solution for the energy consumption , makes studies in Chicacaque...
