B. Density has been decreased Or D.
Answer:Silicon
Explanation: It would be considerably difficult to build computers with a gas.
Answer:
b. quantitative observation
if its wrong sorry.
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There are 4 valence electrons
Human cells that contain one set ofchromosomes are called gametes, or sex cells; these are eggs and sperm, and are designated 1n, or haploid.Matched pairs of chromosomes in a diploid organism are called homologous (“same knowledge”)chromosomes
