Answer:
It is also worthy to note that Mendeleev's 1871 arrangement was related to the atomic ratios in which elements formed oxides, binary compounds with oxygen whereas today's periodic tables are arranged by increasing atomic numbers, that is, the number of protons a particular element contains.
Explanation:
Answer:
the answer is A :)!!!!!!!!!
Answer:
An updated list of species facing unusually high risk of extinction.
Explanation:
The IUCN red list of threatened species also called as red data list. It is defined as the most comprehensive global conversation status of both animals and plants species.
The IUCN is a criteria to identify the extinction risk of lots of biological subspecies, and species. These criteria are relevant to all regions of the word, and all the biological species.
