I think C, correct me if I’m wrong.
1.) Problem: Diff. Shape of the moon
<span>Hypothisis: earth, sun, n moon locations creates a shadow </span>
<span>Experiment: her experiment </span>
<span>Observation: Researching </span>
<span>Conclusion: she is yet to make one </span>
<span>2.) Size of balls - make them accurate </span>
<span>Research: use multiple sources </span>
<span>The amount of light: keep using the same light</span>
A. Duplication is one of the different types of chromosomal mutations.
Look to see if the compound is ionic or not, then follow the rules for prefixes and suffixes of the compound.