An observation is A. a possible explanation for events using prior knowledge
B. alway quantitative
C. made using any of the five senses
D. always qualititative ​

20 the compound al(nh3)2 has atoms of nitrogen.

What chemical speeds up the process of decomposition in dead organisms are exposed to it? nitrogen oxygen hydrogen chlorine

Which statement is true for all sexually reproducing plants and animals? the process of mitosis produces gametes. the process of mitosis always produces diploid cells. the process of meiosis produces gametes. the process of meiosis produces haploid cells. the process of meiosis produces diploid cells.