The last Czar, Nicholas and his
family were
killed during the
Bolshevik
Revolution
True or Flase
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Air pollution: “combustion results in gases such as nitrogen oxides, nitrogen dioxide and particulates. the main causes of air pollution include transport, domestic combustion and industrial processes. pollutants from these sources can cause problems in the immediate vicinity and a distance away.”

Answer volcanic eruptionsseismic waves from earthquakes;

Answer (d) may increase or decrease porosity through dissolution or deposition;

The figure is not necessarily a parallelogram because only one diagonal is bisected and only one pair of sides is congruent.