Apakah maksud species endemik?berikan dua kaedah untuk memelihara Dan memelihara spesies endemik​

Pauling and lewis questioned the extreme definitions of bonds. they wondered if bonds might be described somewhere in between the two extremes (covalent and ionic). on the basis of experimental data,pauling confirmed that bonds could be ionic, covalent, and for those, in between, exhibit a degree of ionic character. he theorized that the major factor was how strongly the atoms in the bond attracted the electrons. pauling called this factor - the tendency of an atom to attract electrons in a bond.

One does not belong why? ice, gold ,wood ,diamond and table salt

List and describe the neurological effects of the vocs and other air pollutants,as described by dr.theo colborn