The modern periodic table has been divided into
(a) seven periods: three short and four long
(b) nine periods : six short and three long
(c) eighteen periods : ten short and eight long
(d) nine periods from zero to VIII
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39
Answer:
The modern periodic table has been divided into
(a) seven periods: three short and four long
(b) nine periods : six short and three long
(c) eighteen periods : ten short and eight long
(d) nine periods from zero to VIII
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3
Answer:
Greenhouse gases keep our planet livable by holding onto some of Earth's heat energy so that it doesn't all escape into space. This heat trapping is known as the greenhouse effect. Just as too little greenhouse gas makes Earth too cold, too much greenhouse gas makes Earth too warm
Explanation:
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