1. Removal of the top layer of soil/rocks by wind, water is known as   Corrosion   Detoxification   Erosion   Desalination   Hint Half-n-half Clue   2. Gasoline is a non-renewable source of energy.   True   False   3. Greenhouse effect will lead to   An increase in Oxygen Production   An increase in the temperature   Decrease in atmospheric pressure   Greater rainfall   Half-n-half Clue   4. What is caused by the slight tilt of the earths axis?   Earthquakes   Day and Night   Seasons   Tides   Half-n-half Clue   5. Granite and quartz are igneous rocks.   True   False   6. The earth rotates from   East to West   South to North   North to South   West to East   Half-n-half Clue   7. Which of the following is a main component of common glass?   Powdered Mica   Marble   Sand   Water   Half-n-half Clue