Answer:
thnxs....for free point dude
The basic layout of the current periodic table has:
Columns known as groups, the elements inside each of which having similar properties.
Rows known as periods. The elements in a given period have the same number of electron shells.
Answer:
The UNCCD set out a definition of desertification in a treaty adopted by parties in 1994. It states that desertification means “land degradation in arid, semi-arid and dry sub-humid areas resulting from various factors, including climatic variations and human activities”.
Explanation:
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