1. what type of radiation is used to measure the thickness of paper
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2. I had 42 sweets me and Sam shared them in the ratio 2:4 how many sweets did Sam get
3. what country is not in the UN
4. Sam had 50 sweets he shared them between himself and lily in the ratio 3:2 how many sweets where their
5. In plants, energy is used to convert sugars into amino acids, which are the building blocks of...