False because t<span>he </span>Cambrian Period<span> was when most of the major groups of animals first appear in the fossil record.</span>
Answer:
The oxidation number of a free element is alwa The oxidation number of a monatomic ion equals the chahe oxidation number of
H
is +1, but it is -1 in when combined with less electronegative elements.
The oxidation number of
O
in compounds is usually -2, but it is -1 in peroxides.
The oxidation number of a Group 1 element in a compound is +1.
The oxidation number of a Group 2 element in a compound is +2.
The oxidation number of a Group 17 element in a binary compound is -1.
The sum of the oxidation numbers of all of the atoms in a neutral compound is 0.
The sum of the oxidation numbers in a polyatomic ion is equal to the charge of the ion
Explanation:
Depletion of atmospheric ozone causes an increase in the intensity of UV radiation reaching the Earth
<u>Explanation:</u>
Ozone depletion is connected in several ways with weather variation. The temperature stability of the Earth has impacted by Atmospheric ozone in a pair of ways. It consumes solar ultraviolet radiation and ignites the stratosphere. Expertly ensnaring heat in the troposphere by engrossed infrared radiation discharged by the Earth's surface.
Therefore, the climate consequence of variations in ozone concentrations alters with the altitude at which these ozone changes occur. The gases like chlorofluorocarbons, are greenhouse gases, consuming some of the infrared radiation discharged by the Earth's surface, thereby adequately heating the Earth's surface.
Probably is this a shcool question?
